Riichi City has released a dedicated promotional video for Choi Hyorin's new event-exclusive outfit, Full Body Checkup, on September 6, 2026. The medical-themed costume is scheduled to arrive in the game on September 10, 2026.
The PV is also tied to an official X campaign. Players can follow @RiichiCity_JP and repost the campaign announcement for a chance to receive the Full Body Checkup outfit or an Amazon Gift Card. Riichi City also states that the corresponding Choi Hyorin character must be owned before the outfit can be used.
Quick Summary
- Game: Riichi City
- Japanese title: 麻雀一番街
- Game type: online competitive Japanese mahjong
- Character: Choi Hyorin
- Japanese name: チェヒョリン
- Korean name: 최효린
- New outfit: Full Body Checkup
- Japanese outfit name: 全身検査
- Outfit type: event-exclusive outfit
- Latest material: outfit PV
- PV date: September 6, 2026
- Outfit implementation: September 10, 2026
- Implementation day: Thursday
- Japanese CV: Yu Shimamura / 嶋村侑
- Korean CV: Kim Hyeon-ji / キムヒョンジ
- Campaign format: follow and repost on X
- Main prize: Full Body Checkup outfit
- Outfit winners: one
- Second prize: ¥1,000 Amazon Gift Card
- Gift-card winners: five
- Campaign deadline: September 15, 2026
- Deadline time: 11:59 PM JST
- Outfit requirement: Choi Hyorin must be owned
- Regular acquisition method outside the giveaway: not fully detailed in the PV announcement
- Outfit price: unannounced in the verified material
- Full availability period: not yet detailed
- Choi Hyorin profile: Bartender of the Land of Hibiscus
- Birthday: February 20
- Height: 165 cm
- Playing style: focused on carefully curated tile combinations
- Favorite Yaku: Sanshoku Doujun
- Favorite Yaku: Sanshoku Doukou
- PC platform: Steam
- Mobile platforms: iOS and Android
- Steam release: September 8, 2022
- Business model: free-to-play with in-app purchases
- Online PvP: supported
- Cross-platform multiplayer: supported
- Japanese: supported
- English: supported
- Simplified Chinese: supported
- Traditional Chinese: supported
- Indonesian: not supported on Steam
- Steam developer: Formirai Co., Ltd.
- Steam publisher: Formirai Co., Ltd.
Full Body Checkup PV, Steam and Outfit Visual
Full Body Checkup Gives Choi Hyorin a Medical Examination Theme
The Full Body Checkup outfit places Choi Hyorin within a medical examination concept that serves as the visual focus of the new PV.
The material uses a palette built around white, purple and pink, while the video presentation leans into an examination-room atmosphere. “Full Body Checkup” is also the official English title used by Riichi City's English-language account.
An earlier official introduction has Hyorin offering to give the Captain a thorough examination if they are so concerned.
The concept functions as the visual hook for the cosmetic rather than changing Choi Hyorin's role as a mahjong character.
The Outfit Is Scheduled for September 10
Riichi City has confirmed that Full Body Checkup is scheduled to be implemented on September 10, 2026.
The outfit arrives alongside other content planned around the same update, although Full Body Checkup itself is specifically a cosmetic for the already existing Choi Hyorin.
The verified official material does not yet provide a complete breakdown of the outfit's price, total availability period or every method through which it can be obtained.
One condition is explicit: the outfit cannot be used unless the corresponding Choi Hyorin character is owned.
The Campaign Gives Away the Outfit and Amazon Gift Cards
The PV launch is accompanied by an official giveaway through the Japanese @RiichiCity_JP account.
Participation requires following the official account and reposting the PV campaign post.
One winner will receive the Full Body Checkup event-exclusive outfit, while five winners will each receive a ¥1,000 Amazon Gift Card.
Entries close on September 15, 2026 at 11:59 PM JST.
The announcement does not state that watching the YouTube version itself is required for participation; the listed campaign actions are following and reposting the official X post.
Yu Shimamura and Kim Hyeon-ji Return as Choi Hyorin
Riichi City again credits both of Choi Hyorin's voice performers for the new outfit.
The Japanese version uses Yu Shimamura (嶋村侑), while the Korean version uses Kim Hyeon-ji (キムヒョンジ).
Choi Hyorin's earlier official profile introduced her as the Bartender of the Land of Hibiscus, with a height of 165 cm and a February 20 birthday.
Her playing style is described as focusing on carefully constructed tile combinations, with Sanshoku Doujun and Sanshoku Doukou listed as her favorite Yaku.
Full Body Checkup therefore gives the same established character a different cosmetic theme without changing those underlying profile details.
The PV Is the Main Material Behind This Reveal
Riichi City had already shown the Full Body Checkup visual, but the September 6 announcement specifically promotes an event-exclusive outfit PV.
The video is therefore the most direct material for seeing the outfit's presentation, Choi Hyorin's expressions, framing and promotional animation.
A high-quality version is available on YouTube under video ID Y8Sp2GQMj3k.
Steam remains the game's primary PC store, but this news is not primarily about a gameplay update or Steam feature. Because the PV is the focus, the article's 12-image grid uses frames from the video rather than Steam screenshots.
Riichi City Remains an Online Mahjong Game Built Around Characters and Cosmetics
Beyond the outfit announcement, Riichi City is a free-to-play Japanese mahjong game centered on online matches.
Steam lists Online PvP, cross-platform multiplayer, and in-app purchases, while the game is also available on iOS and Android.
Its presentation includes ACG-style characters with voice acting alongside a wide selection of cosmetic items and decorations.
Full Body Checkup sits squarely within that cosmetic layer: it is a new outfit for an existing character rather than a new mahjong character or a rules update.
Why This Matters
1) The outfit receives a dedicated promotional video
Riichi City is not relying only on a static visual, giving Full Body Checkup its own video presentation.
2) The campaign offers a direct chance to obtain the outfit
One winner receives Full Body Checkup itself, rather than the promotion being limited to Amazon Gift Cards.
3) Choi Hyorin's established identity remains intact
Yu Shimamura and Kim Hyeon-ji return, while the bartender character is presented through a distinctly different medical-themed cosmetic.
4) Several commercial details remain unrevealed
The implementation date is confirmed, but the price, full availability period and normal acquisition details remain incomplete in the verified material.
Game and Outfit Information
For now, the additional important information currently known includes:
- the official global game name is Riichi City
- the Japanese game title is 麻雀一番街
- Choi Hyorin is written as チェヒョリン on the Japanese account
- her Korean name is 최효린
- Full Body Checkup is an event-exclusive outfit
- its Japanese name is 全身検査
- the outfit PV was published on September 6, 2026
- a high-quality version is available through YouTube
- the outfit is scheduled to enter the game on September 10, 2026
- September 10, 2026 falls on a Thursday
- Choi Hyorin's Japanese CV is Yu Shimamura
- her Korean CV is Kim Hyeon-ji
- the giveaway is hosted through @RiichiCity_JP
- participants must follow the official account
- participants must repost the campaign post
- the deadline is September 15, 2026 at 11:59 PM JST
- one winner receives the Full Body Checkup outfit
- five winners receive Amazon Gift Cards
- each Amazon Gift Card is worth ¥1,000
- the announcement states that the outfit cannot be used without owning its corresponding character
- Choi Hyorin therefore must be owned to use Full Body Checkup
- the outfit price has not been confirmed in the PV announcement
- the complete sales or availability window has not been detailed
- Choi Hyorin's birthday is February 20
- she is 165 cm tall
- her official profile calls her the Bartender of the Land of Hibiscus
- her playing style focuses on curated tile combinations
- her favorite Yaku are Sanshoku Doujun and Sanshoku Doukou
- Riichi City is free-to-play
- the Steam App ID is 1954420
- the Steam version launched on September 8, 2022
- Online PvP is supported
- cross-platform multiplayer is supported
- in-app purchases are available
- Japanese interface, full audio and subtitles are supported on Steam
- English interface and subtitles are supported
- Simplified Chinese is supported
- Traditional Chinese is supported
- Indonesian is not supported on the Steam listing
- a mobile version is available on iOS
- a mobile version is available on Android
- Steam lists Formirai Co., Ltd. as developer and publisher
- official information is available through the Riichi City Official Website
- the PV campaign is available through the Riichi City Official X Post
- the high-quality video is available through the Choi Hyorin Full Body Checkup Official PV
- outfit implementation information is available through Riichi City Steam Announcements
- the PC version is available through Riichi City on Steam
- the Android version is available through Riichi City on Google Play
- the iOS version is available through Riichi City on App Store
Closing
Choi Hyorin is receiving a new spotlight through Full Body Checkup, with a dedicated PV showcasing its medical theme before the outfit's September 10, 2026 implementation. The official campaign also gives one player a chance to obtain the cosmetic directly, alongside five Amazon Gift Card prizes.
Pricing, the complete availability window and the normal acquisition method outside the giveaway have yet to be fully detailed. The X campaign itself remains open until September 15 at 11:59 PM JST.
- Riichi City Official X — Official Choi Hyorin Full Body Checkup PV and Giveaway Campaign
- Riichi City / YouTube — Official Choi Hyorin Full Body Checkup Event Exclusive Outfit PV
- Steam Community — Official Full Body Checkup Outfit Announcement and September 10 Implementation Date
- Steam — Official Riichi City Store Page, Features, Platforms, and Languages
- Steam Community Announcements — Official Choi Hyorin Character Profile and Voice Cast Information
- Google Play — Official Riichi City Android Store Page
- App Store — Official Japanese Riichi City iOS Store Page
