[Event Reminder] Riichi City × The Quintessential Quintuplets collab event Quintuplets' Theory is in full swing ‼️✨ ⏰ Event duration 2025/12/12 (Fri.) 10:00 - 2026/01/10 (Sat.) 23:59 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

Starting today, you'll see the Riichi City × The Quintessential Quintuplets collab promotional poster in Shibuya Station of the Tokyo Metro! #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

Ichika Cup Results 🌸 Congratulations to the following players who have shown their acting skills: 🥇 1st: 琦一ᴾᴰᴰ 🥈 2nd: 伝説商店街 🥉 3rd: 素敵のOuO Ichika's Secret Task Let's give a special round of applause to おとしんぐ for scoring the most Chiitoitsu wins! The Nino Cup is just around the corner!

[Event Reminder] Riichi City × The Quintessential Quintuplets collab event Quintuplets' Theory is in full swing ‼️✨ ⏰ Event duration 2025/12/12 (Fri.) 10:00 - 2026/01/10 (Sat.) 23:59 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

🌸 The Five Sisters' Secret Tasks 🌸 Complete the secret task for each cup to earn two Lucky Tokens! ※ Minimum requirement: three Hanchan matches. ※ If players are tied with the same count, the higher-ranking player on the event rankings will receive the reward.

🔥 Mahjong Festival Kicks Off! 🔥 Dec 12, 2025 (Fri.)—today marks the beginning of the Dazzling Mahjong Festival. Tonight, challengers gather for the first trial: the Ichika Cup! The stage is set, and destiny calls. What surprises await in this match? Challengers, it's time to shine!

[Collab Exclusive Outfit Packs Now Live] Quintuplets' Tale Outfit Packs Limited-Time Offer!! ⏰Available 2025/12/12 (Fri.) 10:00 - 2026/01/10 (Sat.) 23:59 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

Featuring characters from The Quintessential Quintuplets, the collab Gacha pools Quintuplets' Meetup and Quintuplets' Encounter are now live ‼️✨ 2025/12/12 (Fri.) 10:00 - 2026/01/10 (Sat.) 23:59 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

[Collab Exclusive Outfits Now Live] The Quintessential Quintuplets outfit theme Quintuplets' Tale is now up for sale ✨ ⏰Available 2025/12/12 (Fri.) 10:00 - 2026/01/10 (Sat.) 23:59 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

[Collab Event Now Live] Riichi City × The Quintessential Quintuplets collab event Quintuplets' Theory has officially begun!✨ ⏰ Event duration 2025/12/12 (Fri.) 10:00 - 2026/01/10 (Sat.) 23:59 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

Update Notice There will be an update scheduled on 12/12 at 10:00 (UTC+9). Please note that the duration is subject to change without prior notice. ▼For update details, please check the official website and in-game notices. www.mahjong-jp.com/news/detail/... #RiichiCity

\ Collaboration Countdown / "Only 1 day to go!!" #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

[Collab Exclusive Decorations & Emotes PV] Get ready! The Riichi City × The Quintessential Quintuplets collab brings exclusive decorations and Emotes on 2025/12/12 (Fri.)! ▼ HD version youtu.be/zqO4xQumPDc #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

🎊 Nakano Itsuki (CV: #MinaseInori) Character PV 🎊 Catch the official character PV for Nakano Itsuki from the #RiichiCityTheQuintessentialQuintupletsCollab ✨ Join the collab and see their charm for yourself ‼️ ▼ HD version youtu.be/It6E4y27nIo #RiichiCity #TheQuintessentialQuintuplets

[Collab Event Minigame] The Wish & Dish collab minigame goes live right after the maintenance on 2025/12/12 (Fri.)! ✨ Cook up delicious dishes, rack up high scores, and enjoy the fun! #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

\ Collaboration Countdown / "Only 2 days to go!!" #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

🎊 Nakano Yotsuba (CV: #SakuraAyane) Character PV 🎊 Catch the official character PV for Nakano Yotsuba from the #RiichiCityTheQuintessentialQuintupletsCollab ✨ Join the collab and see their charm for yourself ‼️ ▼ HD version youtu.be/XXn3oke2BUM #RiichiCity #TheQuintessentialQuintuplets

\ Collaboration Countdown / "Only 3 days to go!!" #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

🎊 Nakano Miku (CV: #ItoMiku) Character PV 🎊 Catch the official character PV for Nakano Miku from the #RiichiCityTheQuintessentialQuintupletsCollab ✨ Join the collab and see their charm for yourself ‼️ ▼ HD version youtu.be/AXV1w-FGHm4 #RiichiCity #TheQuintessentialQuintuplets

Starting today, you'll see the Riichi City × The Quintessential Quintuplets collab promotional poster in Akihabara Station Pedestrian Tunnel of the Tokyo Metro! #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

\ Collaboration Countdown / "Only 4 days to go!!" #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

🎊 Nakano Nino (CV: #TaketatsuAyana) Character PV 🎊 Catch the official character PV for Nakano Nino from the #RiichiCityTheQuintessentialQuintupletsCollab ✨ Join the collab and see their charm for yourself ‼️ ▼ HD version youtu.be/Xp6OI9k_CvE #RiichiCity #TheQuintessentialQuintuplets

\ Collaboration Countdown / "Only 5 days to go!!" #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

[Event Introduction] The Quintuplets' Theory collab event goes live right after the maintenance on 2025/12/12 (Fri.)! ✨ #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

🎊 Nakano Ichika (CV: #HanazawaKana) Character PV 🎊 Catch the official character PV for Nakano Ichika from the #RiichiCityTheQuintessentialQuintupletsCollab ✨ Join the collab and see their charm for yourself ‼️ ▼ HD version youtu.be/r4Fcsniv5xg #RiichiCity #TheQuintessentialQuintuplets

[Collab Exclusive Novelty Giveaway] To celebrate the Riichi City × The Quintessential Quintuplets collaboration, we've prepared a giveaway event for all players! ▼ For more details: www.riichicitystore.com/lucky-draw ※ Note: A valid shipping address within Japan is required to participate.

[Event Results] The Radiant Dreams S4 event has concluded successfully! After intense competition, Choi Hyorin, who captivated everyone with charm and sincerity, has surpassed all other characters, securing the top spot with overwhelming fan support! Wishing you all the best in game and in life!

■ Character Outfit (Collab Exclusive) Nakano Itsuki - Tea Party Princess "Can I really accept such a wonderful gift?" 🔜 Estimated release date: 2025/12/12 (Fri.) 10:00 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Outfit (Collab Exclusive) Nakano Yotsuba - Plains Messenger "Let's have fun today too!" 🔜 Estimated release date: 2025/12/12 (Fri.) 10:00 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Outfit (Collab Exclusive) Nakano Miku - Waterside Mermaid "If there's anything I can help, just let me know. I'll do it." 🔜 Estimated release date: 2025/12/12 (Fri.) 10:00 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Outfit (Collab Exclusive) Nakano Nino - Fairy of the Garden "Just go ahead and speak your mind." 🔜 Estimated release date: 2025/12/12 (Fri.) 10:00 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Outfit (Collab Exclusive) Nakano Ichika - Red Carpet Star "I keep looking for ways to deliver a better shot... It's what I love doing more than anything now." 🔜 Estimated release date: 2025/12/12 (Fri.) 10:00 (UTC+9) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity

■ Character Information (Collab Exclusive) Nakano Itsuki (Awakened) "You are my ideal." 🔜 Estimated release date: 2025/12/12 (Fri.) You can awaken this character to obtain the awakening outfit! #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Information (Collab Exclusive) Nakano Itsuki (CV: #MinaseInori) Birthday: May 5th Height: 159cm Playstyle: calling tiles without hesitation Favorite Yakus: Shiiaru Raotai, Uumensai "I'm Nakano Itsuki, nice to meet you. What-'meat bun monster'? Who told you that?!"

■ Character Information (Collab Exclusive) Nakano Yotsuba (Awakened) "I'll lend you my energy, so get your spirits up!" 🔜 Estimated release date: 2025/12/12 (Fri.) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Information (Collab Exclusive) Nakano Yotsuba (CV: #SakuraAyane) Birthday: May 5th Height: 159cm Playstyle: as long as the tile count is correct Favorite Yakus: Tanyao, Pinfu "I'm Nakano Yotsuba! Nice to meet you! Do you think I could play mahjong too?"

Dazzling Mahjong Festival Special Guest: Shibukawa Nanba A name that could stand among the finalists... or bring the tournament to life from the commentator desk. Stay tuned! #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Information (Collab Exclusive) Nakano Miku (Awakened) "I want to become someone you'd like." 🔜 Estimated release date: 2025/12/12 (Fri.) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

[Collaboration Exclusive Login Rewards!] To celebrate the #RiichiCityTheQuintessentialQuintupletsCollab, we're thrilled to offer login rewards! ✨ Collab login rewards available: 2025/12/02 (Tue.) 05:00 - 2025/12/12 (Fri.) 04:59 (UTC+9) Log in to unlock fantastic rewards! #RiichiCity

■ Character Information (Collab Exclusive) Nakano Miku (CV: #ItoMiku) Birthday: May 5th Height: 159cm Playstyle: as steady as a seasoned general Favorite Yaku: Kaga Hyakuman Goku "I'm Nakano Miku. Mahjong... I think I'll give it a try." #RiichiCity #TheQuintessentialQuintuplets

🎁 December Wallpaper Gift 🎁 Captains, Riichi City presents the exclusive December wallpaper—featuring the heartwarming "Fuwa Mahiru UR," here to light up your every shining moment! ✨ The wallpaper is ready, so feel free to download it, Captains! 🔽 Download Link: bit.ly/4oQ58G9 #RiichiCity

Today is Isshiki Seibi's birthday! Let's wish her a happy birthday together! 🎂 To celebrate Seibi's birthday, we specially prepared gifts for each captain in-game! [Gift Code]: HBD1201 *This gift code is valid on the day only *How to Redeem: Settings⚙️ → Gift Code #RiichiCity

■ Character Information (Collab Exclusive) Nakano Nino (Awakened) "So love's all about being bold, just as I thought." 🔜 Estimated release date: 2025/12/12 (Fri.) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Information (Collab Exclusive) Nakano Nino (CV: #TaketatsuAyana) Birthday: May 5th Height: 159cm Playstyle: efficiency-focused Favorite Yaku: Ittsu "I'm Nakano Nino. Are you the mahjong tutor?" #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Information (Collab Exclusive) Nakano Ichika (Awakened) "I'll make this a moment you'll never forget.♡΅" 🔜 Estimated release date: 2025/12/12 (Fri.) #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

■ Character Information (Collab Exclusive) Nakano Ichika (CV: #HanazawaKana) Birthday: May 5th Height: 159cm Playstyle: ambiguous discards Favorite Yaku: Chiitoitsu #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets

🎁 Riichi City Store Information Update 🎁 Riichi City Store Top-Up Bonus Events Now Ongoing! 🔥 Enjoy over 100% bonus on your first purchase of each Voucher Pack! ✨ Don't miss out, Captains! 👀 ▼Riichi City Store www.riichicitystore.com ▼Wishes Event www.riichicitystore.com/pray/recharge

Limited-Time Collab Packs: Now Available! The Special Pack (Gacha & Others) — Handle characters Gacha, Level up and outfit purchases all at once! The XenoLink Packs offer up to 45% off on Lucky Tokens! ▼Riichi City Store: www.riichicitystore.com #RiichiCity

🀄 Riichi City × The Quintessential Quintuplets Collaboration 🌸 Dazzling Mahjong Festival Begins Soon! 🌸 Event duration: 2025/12/12 (Fri.) - 2026/01/03 (Sat.) Eligibility: Reach 1st Dan or above in 4-Player Ranked Matches ▼ Full Rules & Details www.mahjong-jp.com/news/detail/...

Quintuplets' Game 🌸 Think you can tell the five sisters apart just by their voices and looks? Put your skills to the test now! 🔽 Play Here www.mahjong-jp.com/en/ghtest #RiichiCityTheQuintessentialQuintupletsCollab #RiichiCity #TheQuintessentialQuintuplets