# めいのマネー情報屋 / May's Money Room / May的日本情报屋 > Money optimization guides for Japan residents. Covers credit cards, points hacking, investment (NISA/IPO), and e-commerce deals. Available in Japanese, English, and Chinese. > 日本在住者向けのお金の最適化ガイド。クレジットカード還元、ポイ活、投資（NISA・IPO）、EC セール攻略を実体験ベースで発信。 > 在日生活省钱全攻略：信用卡返现、积分活动、投资（NISA·IPO）、电商大促，三语覆盖。 ## Site Info - Author: May (based in Japan, personal finance & savings specialist) - Japanese: https://may-money.com - English: https://may-money.com/en/ - Chinese: https://may-money.com/zh/ --- ## 🇯🇵 日本語 — 完全ガイド - [Amazonでポイントが貯まる｜ギバース（Givearth）紹介](https://may-money.com/givearth-guide/) - [Amazonプライムデー攻略｜エントリー方法とポイント還元を最大化するコツ](https://may-money.com/amazon-prime-day-guide/) - [Apple Store iPhone在庫チェッカー完全ガイド｜全店舗リアルタイム確認＆買取価格比較](https://may-money.com/apple-store-iphone-stock-checker-guide/) - [Apple初売り完全攻略ガイド｜最大38,000円還元＆限定AirTag＆楽天リーベイツ4.5%](https://may-money.com/apple-hatsuuri-2026/) - [Bitget完全ガイド｜登録方法・手数料・安全性を徹底解説【最大6,200 USDT】](https://may-money.com/bybit-to-bitget-referral/) - [ETCマイレージサービス完全ガイド｜登録方法・ポイント還元率・割引制度を徹底解説](https://may-money.com/etc-mileage-guide/) - [FamiPay完全ガイド：チャージ方法・POSA購入・最大13%還元の実現方法](https://may-money.com/famipay-guide/) - [GLADD（グラッド）完全ガイド｜登録方法・送料無料テク・お得な使い方を徹底解説](https://may-money.com/gladd-guide/) - [JRE BANK完全ガイド｜新幹線4割引券・グリーン券の獲得方法を徹底解説](https://may-money.com/jre-bank-guide/) - [JR九州×JR西日本「熊本DC連動キャンペーン」乗り放題きっぷ&くまモン列車を徹底解説（2026年7〜12月）](https://may-money.com/railway-jrkyushu-freepass-20260702/) - [Keepaの使い方｜Amazonセールが本当にお得か確認する方法](https://may-money.com/keepa-guide/) - [TikTok Lite招待キャンペーン｜登録だけで即3500円！PayPay・ウエル活に交換可能](https://may-money.com/tiktoklite-guide/) - [TikTok招待キャンペーン｜登録だけで8000円！（Lite版ではありません）](https://may-money.com/tiktok-guide/) - [dポイント×Amazon連携で最大2%還元！登録方法とランク制度を徹底解説](https://may-money.com/dpoint-amazon-guide/) - [nanaco完全ガイド｜セブン&i経済圏で最大11%還元を狙う電子マネー攻略](https://may-money.com/nanaco-guide/) - [povo 2.0完全ガイド｜基本料0円で20年無料維持！ポイ活で5,600円ゲット【最新】](https://may-money.com/povo-guide/) - [「ポイ活」超入門㊙️](https://may-money.com/point-site-guide/) - [【JCBカード】完全ガイド｜J-POINTリニューアル・カードW/S/ゴールド比較・節約テクニック【最新】](https://may-money.com/jcb-card-guide/) - [【Marriott Bonvoy アメックス・プレミアム・カード】のキャンペーン情報！プラチナ・無料宿泊・6%還元を徹底解説](https://may-money.com/marriott-amex-campaign/) - [【アメックス・ゴールド・プリファード・カード】完全ガイド｜紹介で3万ポイント多くもらえる【2026年最新】](https://may-money.com/amex-gold-preferred/) - [【ワンバンク】（旧B/43）完全ガイド – 最新｜AI家計簿×Visaプリペイドカード×公共料金支払い](https://may-money.com/onebank-guide/) - [【三井住友カード（NL）】最新完全ガイド – 年会費永年無料・コンビニ最大20%還元・ポイントサイト経由がお得](https://may-money.com/smbc-card-nl-guide/) - [【三菱UFJカード】完全ガイド｜対象店舗7%還元・最大20%・楽Pay活用・経済圏連携を徹底解説【最新】](https://may-money.com/mitsubishi-ufj-card-guide/) - [【最大1,000円】エアウォレット50%還元キャンペーン完全攻略](https://may-money.com/airwallet-cashback-guide-251220/) - [【最新】Amazonプライム完全ガイド｜月額492円で使える10大特典と節約術](https://may-money.com/amazon-prime-guide/) - [【最新】JRE POINT完全ガイド｜年間数万円節約の貯め方・使い方](https://may-money.com/jre-point-guide/) - [【最新】Rocket Now（ロケットナウ）完全ガイド｜送料・サービス料0円の使い方とクーポン情報](https://may-money.com/rocket-now-guide/) - [【最新】ことら送金 完全ガイド｜手数料0円で即時送金できるサービス](https://may-money.com/kotora-transfer-guide/) - [【最新】ふるさと納税完全ガイド](https://may-money.com/furusato-nozei-guide/) - [【最新】ウェル活完全攻略ガイド｜毎月20日に33%OFFでお買い物する究極の節約術](https://may-money.com/welkatsu-complete-guide/) - [【最新】フードデリバリー4社徹底比較｜Rocket Now・menu・Uber Eats・出前館 どれが一番お得？](https://may-money.com/delivery-app-guide/) - [【最新】投信クレカ積立→即売りポイ活完全ガイド｜毎月7000円以上稼げる](https://may-money.com/credit-card-tsumitate-poikatsu/) - [【最新】楽天お買い物マラソン完全攻略｜ポイント還元でお得に！](https://may-money.com/rakuten-marathon-guide/) - [【最新】楽天カード入会ガイド｜紹介経由で最大11,000ポイント＋楽天モバイル同時申込で31,000ポイント](https://may-money.com/rakuten-card-guide/) - [【最新】立会外分売完全ガイド｜勝率約80%の低リスク投資法](https://may-money.com/bunbai-guide/) - [どこかにビューーン｜4000ポイントで新幹線往復、最大89%オフ！](https://may-money.com/dokokani-byuuun-guide/) - [ウェル活重ね技完全ガイド](https://may-money.com/welkatsu-campaigns-dec2025/) - [タイムズカー完全ガイド｜料金改定・月額無料の裏技・お得な入会方法](https://may-money.com/times-car-share-guide/) - [使用中でもOK！PayPay紹介コードで300ポイント｜60日以内なら入力可能](https://may-money.com/paypay-referral-guide/) - [完全ガイド：年利2%プリペイドカード活用術](https://may-money.com/idare-guide/) - [完全ガイド｜口座開設・使い方・海外旅行での活用法まで徹底解説](https://may-money.com/revolut-guide/) - [完全ガイド｜新規入会＋初回利用で最大12,000ポイント](https://may-money.com/amazon-prime-mastercard-guide/) - [完全ガイド｜駅ビル3.5%還元+定期券一体の最強カード](https://may-money.com/jre-card-guide/) - [新NISA](https://may-money.com/nisa-guide/) - [東京アプリ11000ポイント完全ガイド｜申し込み・交換先・混雑回避](https://may-money.com/tokyo-app-11000-point-guide/) - [株主優待ガイド｜クロス取引・長期優待・端株優待まで徹底解説](https://may-money.com/yutai-guide/) - [第一生命NEOBANK完全ガイド｜口座開設1,500円・デビット1.5%還元・銀行ポイ活で月1,170P](https://may-money.com/dai-ichi-neobank-guide/) - [（ワイズ）完全ガイド｜海外送金・マルチカレンシー口座・デビットカード活用術](https://may-money.com/wise-guide/) - [📚 IPO完全ガイド](https://may-money.com/ipo-guide/) ## 🇯🇵 日本語 — お得速報 - [創業60周年記念！サイドメニュー1品無料サービス券を2026年4月21日より配布開始](https://may-money.com/food-matsuya-campaign-20260421/) - [南海電鉄、タッチ決済の上限割サービスを2026年7月31日まで延長｜難波～高野山往復で560円お得](https://may-money.com/railway-nankai-touchpay-20260418/) - [吉野家×ドラゴンクエストウォークが初コラボ！『冒険者応援キャンペーン』7月2日開幕、フィギュア付きセット&限定グッズ](https://may-money.com/food-yoshinoya-campaign-20260702/) - [吉野家「トッピング祭」開催！人気6種類が100円、新作「明太高菜マヨ」も登場](https://may-money.com/food-yoshinoya-campaign-20260513/) - [吉野家「冷凍牛丼の具」5億食突破記念キャンペーン開催！特別価格5,000円・5,555円&HARIOご飯釜が当たる](https://may-money.com/food-yoshinoya-campaign-20260617/) - [吉野家「牛丼弁当2丁800円キャンペーン」GW期間限定でお得にテイクアウト](https://may-money.com/food-yoshinoya-campaign-20260423/) - [国内線タイムセール開催！5月15日1日限定、片道9,130円〜の特別運賃](https://may-money.com/flight-jal-timesale-20260514/) - [東京モノレール、台北メトロ・桃園メトロと友好連携協定を締結｜観光プロモーションを共同推進](https://may-money.com/railway-tokyo-monorail-partnership-20260704/) - [東海道・山陽新幹線「EX早特☆期間限定セール！」6月26日開始｜東京〜京都・新大阪12,000円・お盆の帰省に](https://may-money.com/railway-ex-hayatoku-sale-20260626/) - [東海道・山陽新幹線「EX早特☆期間限定セール！」東京〜広島が15,000円に｜お盆の予約条件・対象区間まとめ](https://may-money.com/railway-ex-hayatoku-sale-20260605/) - [松屋「乳酸菌牛めし40食」が65％OFF！外食大手5社が共演する「惣菜祭 第三弾」au PAY マーケットで7月23日開催](https://may-money.com/food-matsuya-sale-20260713/) - [松屋フーズがJR西日本「WESTERモール」に新規オープン！最大64%OFFの開店記念セール開催](https://may-money.com/food-matsuya-sale-20260714/) - [松屋フーズがクレディセゾンと連携！「STOREE SAISON」で半額以下のオープン記念セール開催](https://may-money.com/food-matsuya-sale-20260703/) - [松屋・松のや・すし松×こびとづかんコラボ第2弾！オリジナルこびとポーチが全国でもらえる](https://may-money.com/food-matsuya-campaign-20260507/) - [楽天カード あとリボキャンペーン攻略｜手数料ゼロで2000〜4000ポイント獲得](https://may-money.com/rakuten-card-ribo-campaign/) - [楽天カード紹介で11,000ポイント｜入会＋1回利用](https://may-money.com/rakuten-card-11000-campaign/) - [秋田県「得旅キャンペーン」開始！宿泊最大12,000円割引、5月15日から7月31日まで](https://may-money.com/hotel-akita-tokutabi-campaign-20260519/) - [香港エクスプレス航空、日本発着11路線で「エクスプレスセール」開催！片道4,400円から](https://may-money.com/flight-uo-expresssale-20260512/) - [香港エクスプレス航空、日本発着9路線で「エクスプレスセール」開催 片道5,800円から](https://may-money.com/flight-hkexpress-expresssale-20260626/) - [香港エクスプレス航空、羽田・成田〜香港線で「エクスプレスセール」開催　片道5,800円から](https://may-money.com/flight-hkexpress-sale-20260609/) --- ## 🇬🇧 English — Complete Guides - [(formerly B/43) Complete Guide – Latest｜ AI Budgeting App + Visa Prepaid Card in Japan](https://may-money.com/en/onebank-guide-en/) - [: 2% Annual Return Prepaid Card Strategy & Tips](https://may-money.com/en/idare-guide-en/) - [Air Wallet 50% Cashback: Get Up to ¥3,500 in Japan](https://may-money.com/en/airwallet-cashback-guide-251220-en/) - [Already Using? Still OK! PayPay Referral Code for 300 Points](https://may-money.com/en/paypay-referral-guide-en/) - [Amazon Prime Day Guide: How to Enter & Maximize Your Points in Japan](https://may-money.com/en/amazon-prime-day-guide-en/) - [Amazon Prime Japan for Foreigners: Benefits, Student Plan & Sign-Up](https://may-money.com/en/amazon-prime-guide-en/) - [Complete Guide for Japan — International Transfers, Multi-Currency & Debit Card](https://may-money.com/en/wise-guide-en/) - [Complete Guide to Revolut in Japan: Sign Up, Save Money & Travel Smart](https://may-money.com/en/revolut-guide-en/) - [Complete Guide | 3.5% Cashback at Station Buildings + Suica Commuter Pass](https://may-money.com/en/jre-card-guide-en/) - [Complete Guide | J-POINT Revolution, Card Comparison & Money-Saving Tips in Japan | Latest](https://may-money.com/en/jcb-card-guide-en/) - [Complete Guide｜7% at Partner Stores・Up to 20% Back・Raku-Pay Trick・MUFG Ecosystem](https://may-money.com/en/mitsubishi-ufj-card-guide-en/) - [Dai-ichi Life NEOBANK Complete Guide | ¥1,500 Bonus, 1.5% Debit Rewards, 14,040P/Year](https://may-money.com/en/dai-ichi-neobank-guide-en/) - [Dokokani Byuuun (どこかにビューーン) | Round-Trip Shinkansen for 4000 Points, Save Up to 89%!](https://may-money.com/en/dokokani-byuuun-guide-en/) - [ETC Mileage Service Guide｜Registration, Points & Discounts in Japan](https://may-money.com/en/etc-mileage-guide-en/) - [Earn Points on Amazon Japan Shopping｜Givearth(ギバース) Guide](https://may-money.com/en/givearth-guide-en/) - [FamiPay for Foreigners in Japan: How to Register, Charge & Save](https://may-money.com/en/famipay-guide-en/) - [Food Delivery in Japan for Foreigners: English Apps & Best Deals](https://may-money.com/en/delivery-app-guide-en/) - [Furusato Nozei for Foreigners in Japan: Can You Do It?](https://may-money.com/en/furusato-nozei-guide-en/) - [GLADD Guide｜Japan’s Largest Flash Sale Site: Sign-Up, Free Shipping Tricks & How to Save](https://may-money.com/en/gladd-guide-en/) - [Guide｜Up to 12,000 Points for New Cardmembers](https://may-money.com/en/amazon-prime-mastercard-guide-en/) - [JRE Bank for Foreigners: 40% Off Shinkansen & How to Open It](https://may-money.com/en/jre-bank-guide-en/) - [JRE POINT for Foreigners: Earn Points with Suica in Japan](https://may-money.com/en/jre-point-guide-en/) - [Japan Highly Skilled Professional Visa: Points & 1-Year PR](https://may-money.com/en/hsv-guide-en/) - [Japanese IPO Investing for Foreigners: How the Lottery Works](https://may-money.com/en/ipo-guide-en/) - [Japanese Shareholder Perks (Yutai) for Foreigners](https://may-money.com/en/yutai-guide-en/) - [Keepa Guide: How to Tell if an Amazon Sale Is Really a Deal](https://may-money.com/en/keepa-guide-en/) - [MUFG Bank Guide for Foreigners in Japan | Megabank Series #1 ](https://may-money.com/en/mufg-bank-guide-en/) - [Mizuho Bank Guide for Foreigners in Japan | Account Opening, Rakuten Alliance, ¥1,000 Referral | Japan’s Megabank Series #3](https://may-money.com/en/mizuho-bank-guide-en/) - [NISA for Foreigners in Japan: Can You Use It?](https://may-money.com/en/nisa-guide-en/) - [Point Sites for Foreigners in Japan: How to Earn & Cash Out](https://may-money.com/en/point-site-guide-en/) - [Rakuten Card Sign-Up Guide｜Get Up to 11,000 Points via Referral + 31,000 with Rakuten Mobile](https://may-money.com/en/rakuten-card-guide-en/) - [Rakuten Shopping Marathon for Foreigners: How to Stack Points](https://may-money.com/en/rakuten-marathon-guide-en/) - [Rocket Now Japan Guide | Free Delivery App with ¥5,000 Coupon](https://may-money.com/en/rocket-now-guide-en/) - [SMBC Card NL for Foreigners in Japan: Can You Get It?](https://may-money.com/en/smbc-card-nl-guide-en/) - [Tatiaigai Bunbai (立会外分売) Complete Guide | ~80% Win Rate Low-Risk Investment in Japan](https://may-money.com/en/bunbai-guide-en/) - [TikTok Invite Campaign: Get ¥8,000 (Not the Lite Version)](https://may-money.com/en/tiktok-guide-en/) - [TikTok Lite Referral Guide｜Get ¥3,500 Instantly! Exchange for PayPay, Welkatsu](https://may-money.com/en/tiktoklite-guide-en/) - [Times Car Share for Foreigners in Japan: License & Sign-Up](https://may-money.com/en/times-car-share-guide-en/) - [Tokyo App 11,000 Points Guide｜How to Apply & Receive](https://may-money.com/en/tokyo-app-11000-point-guide-en/) - [Welkatsu for Foreigners: 33% Off at Welcia with WAON POINT](https://may-money.com/en/welkatsu-complete-guide-en/) - [d point × Amazon: Earn Up to 2% Cashback on Every Purchase](https://may-money.com/en/dpoint-amazon-guide-en/) - [nanaco Ultimate Guide: Up to 11% Cashback at 7-Eleven After the 2024 Overhaul](https://may-money.com/en/nanaco-guide-en/) - [povo 2.0 for Foreigners in Japan: ¥0 SIM Sign-Up Guide](https://may-money.com/en/povo-guide-en/) - [ SMBC (Sumitomo Mitsui) + Olive Guide: Account Opening, Perks & Power Tips for Foreigners in Japan | Japan’s Megabank Series #2](https://may-money.com/en/smbc-bank-guide-en/) - [ことら送金 (Kotora) Complete Guide ｜ Japan’s Free Instant Bank Transfer Service](https://may-money.com/en/kotora-transfer-guide-en/) ## 🇬🇧 English — Latest Deals - [Toki Air Early-Summer Fare Sale: Nagoya/Chubu–Sapporo/Okadama from 7,000 Yen](https://may-money.com/en/flight-tokiair-sale-20260607-en/) - [Toki Air June Time Sale: All Routes from 6,600 Yen One-Way](https://may-money.com/en/flight-toki-sale-20260527-en/) - [Toki Air Launches 3-Day Flash Sale: One-Way Fares from 7,000 Yen on All Routes](https://may-money.com/en/flight-tokiair-timesale-20260609-en/) - [Toki Air Launches Sale: Nagoya/Centrair–Sapporo/Okadama from 6,000 Yen](https://may-money.com/en/flight-tokiair-sale-20260516-en/) - [Toki Air Summer Sale｜One-Way ¥7,000 Weekdays, ¥9,000 Weekends/Holidays on Niigata, Nagoya & Sapporo Routes](https://may-money.com/en/flight-tokiair-summersale-20260624-en/) - [Tokyo Monorail Signs Friendship Partnership with Taipei Metro and Taoyuan Metro to Jointly Promote Tourism](https://may-money.com/en/railway-tokyo-monorail-partnership-20260704-en/) - [Tsukuba Express Offers 20% Off Early-Morning Rides with Touch Payment: May 11–July 31 Off-Peak Campaign](https://may-money.com/en/railway-tx-discount-20260530-en/) - [Visa Touch Payment Roulette Cashback Campaign in Japan | Win Every Time](https://may-money.com/en/visa-touch-cashback-campaign-en/) - [Welcia Point Campaigns Cashback Guide](https://may-money.com/en/welkatsu-campaigns-dec2025-en/) - [Yahoo! Travel Launches Summer Super Value Sale — Resorts from 6,163 Yen for Two, Until July 9](https://may-money.com/en/hotel-yahootravel-sale-20260701-en/) - [Yoshinoya Celebrates 500 Million Frozen Gyudon Servings! Special Prices of 5,000 & 5,555 Yen Plus a Chance to Win a HARIO Rice Pot](https://may-money.com/en/food-yoshinoya-campaign-20260617-en/) - [Yoshinoya Launches Topping Festival: 6 Popular Toppings at 100 Yen, New Mentai-Takana Mayo Debuts](https://may-money.com/en/food-yoshinoya-campaign-20260513-en/) - [Yoshinoya Launches Two Gyudon Bento for 800 Yen Campaign During Golden Week](https://may-money.com/en/food-yoshinoya-campaign-20260423-en/) - [Yoshinoya × Dragon Quest Walk First-Ever Collab: ‘Adventurer Support Campaign’ Launches July 2 with Figure Sets & Limited Goods](https://may-money.com/en/food-yoshinoya-campaign-20260702-en/) - [ZETTERIA x Narumiya Characters: Get a Random Original Acrylic Carabiner with Every Wakuwaku Set from July 8](https://may-money.com/en/food-zetteria-campaign-20260701-en/) - [ZIPAIR Summer Sale: Seoul from ¥6,500 One-Way, North America Routes Included](https://may-money.com/en/flight-zipair-summersale-20260709-en/) - [ZIPAIR Tokyo Launches Early Summer Sale: Narita-Seoul from 6,500 Yen, Honolulu from 22,750 Yen](https://may-money.com/en/flight-zipair-earlysummersale-20260522-en/) - [menu Delivery App Guide｜¥6,800 Referral Coupons for Japan](https://may-money.com/en/menu-delivery-referral-en/) - [t’way Air “t’gal” Sale: Japan-Korea Flights from 15,625 Yen One-Way](https://may-money.com/en/flight-tway-sale-20260703-en/) - [【Jun 25–30】Jetstar Super Star Sale｜Domestic from ¥3,820, Intl Too](https://may-money.com/en/flight-jetstar-superstar-sale-20260625-en/) --- ## 🇨🇳 中文 — 完全指南 - [Amazon Prime Mastercard 攻略｜新办卡＋首次使用最高拿12,000积分・年会费免费](https://may-money.com/zh/amazon-prime-mastercard-guide-zh/) - [Amazon Prime 日本攻略：在日华人怎么开通、留学生半价、海外卡怎么付](https://may-money.com/zh/amazon-prime-guide-zh/) - [Amazon购物也能获得积分的APP｜ギバース介绍](https://may-money.com/zh/givearth-guide-zh/) - [ETC里程服务完全攻略｜注册方法・积分返还率・折扣制度详解](https://may-money.com/zh/etc-mileage-guide-zh/) - [FamiPay完全攻略：充值技巧、POSA卡购买、最高13%返点实现方法](https://may-money.com/zh/famipay-guide-zh/) - [GLADD攻略｜日本最大闪购网站完全指南：注册、省钱技巧、免运费方法](https://may-money.com/zh/gladd-guide-zh/) - [JRE BANK完全攻略｜新干线4折券・绿色车厢券获取方法详解](https://may-money.com/zh/jre-bank-guide-zh/) - 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