From Saturday, October 31 to Tuesday, November 10, 2026, the space fantasy RPG Honkai: Star Rail, from global entertainment brand HoYoverse, will hold a collaboration campaign with the City of Yokohama and the Yokohama Tourism Association called "スターレイル開拓ゲーム in 横浜" (Star Rail Trailblaze Game in Yokohama).
The campaign offers a variety of "Elation"-filled attractions set up around Yokohama by the Aeon Aha (星神★アッハ), including an original card giveaway, photo spots featuring "Light Cones," and collaboration fireworks. On the Minatomirai Line, a Honkai: Star Rail wrapped train starts running on Saturday, October 24, and special campaigns, including a CGI illustration relay and life-size character panels at every Minatomirai Line station, are also planned.
Version 4.7 of the game is scheduled for release on Wednesday, November 11, 2026. It brings the Planarcadia story, which has continued since Ver. 4.0, to its final chapter, and adds Aeon Aha as the first playable Aeon character in the game.
Aeon Aha, who has once again run away from a manuscript deadline, seems to have quietly landed in Yokohama. Why not wander around the city while chasing the fugitive Aeon Aha?
Original Card Giveaway Campaign
Visitors who order designated menu items or use services at participating stores receive an original instant photo-style photo card that can only be obtained here.
The campaign takes place at 19 participating facilities and about 230 stores. There are 10 designs in total, with different characters depending on the area.
- Period: Saturday, October 31 to Tuesday, November 10, 2026
- YOKOHAMA AIR CABIN: Thursday, November 5 to Tuesday, November 10
- Yokohama Cosmo World: Friday, November 6 to Tuesday, November 10
Note: The cards are available while supplies last. The participating stores and designated menu items are posted on the special website (see below).
Photo Spots
Photo spots featuring the collaboration key visual and "Light Cones" with Aeon Aha and other characters will appear around Yokohama. Imagine the Honkai: Star Rail characters spending their own holidays in the streets of Yokohama, and capture their time in the city on camera while exploring.
- Period: Saturday, October 31 to Tuesday, November 10, 2026
| Character | Facility | Location |
|---|---|---|
| Aeon Aha | Yokohama Symphostage | East Tower 2F, restaurant district area |
| Aeon Aha | Colette Mare | 3F, free space in front of JINS |
| Aeon Aha | Yokohama World Porters | 4F, next to VS Park |
| Aeon Aha / Sunday | Minatomirai Tokyu Square | Minatomirai Tokyu Square (1) 3F |
| Aeon Aha / Sparxie (火花) | CIAL Sakuragicho | Glass wall in front of YOKOHAMA BAZAR and ITS' DEMO (station plaza) |
| Aeon Aha / 不死途 | Yokohama Port Osanbashi International Passenger Terminal | Passage in front of the shop (in front of the media room) |
| Aeon Aha / Silver Wolf LV.999 | Yokohama Red Brick Warehouse | Building No. 2, 3F, next to Re:Wharf |
| Aeon Aha / 緋英 | Yokohama Marine Tower | 1F, entrance on the Hotel New Grand side |
| Aeon Aha / Mortenax Blade (千冶･刃) | Yamashita Koen-dori Association (山下公園通り会) | Next to the entrance of The Cafe on the 1F of the Hotel New Grand main building |
| Aeon Aha / Pearl | BASEGATE Yokohama Kannai | Tower 1F, elevator hall |
Note: Operating hours differ by facility. Please check each facility's business hours and enjoy the photo spots during those hours.
Minatomirai Line Special Campaign
To commemorate the Astral Express (星穹列車) making a special stop in Yokohama, Honkai: Star Rail and the Minatomirai Line are running a series of special campaigns.
(1) Planarcadia Memorial Train
A Minatomirai Line train, wrapped inside and out with visuals of Aeon Aha and Planarcadia, will run as the "Planarcadia Memorial Train." Passengers can enjoy a special train full of memories of Planarcadia.
- Period: Saturday, October 24 to Friday, November 13, 2026
- The interior decorations start on November 1.
- The schedule may change depending on inspections, operations and other circumstances.
- Location: Special collaboration train on the Minatomirai Line (Yokohama Minatomirai Railway Y500 series, one train set, exterior and interior decoration)
Note: Please do not contact stations or station staff with inquiries. When viewing or taking photos, take care not to block passengers' way.
(2) Original Design Minatomirai Line One-Day Pass
The Minatomirai Line One-Day Pass, a good-value ticket for unlimited rides on the Minatomirai Line for one day, is coming in a special design using original "Star Rail Trailblaze Game in Yokohama" illustrations.
- Sales period: Saturday, October 31 to Monday, November 30, 2026 (ends when sold out)
- Price: Adult ¥460 (no child ticket is sold)
- Where to buy: Station offices at Minatomirai Line stations
- Yokohama Station: ticket gate window
- Shin-Takashima to Motomachi-Chukagai stations: station offices
For details on sales locations, please check the Minatomirai Line website: https://www.mm21railway.co.jp/
(3) Minatomirai Station Ticket Gate Wrapping and Voice Playback
Some ticket gates at Minatomirai Station on the Minatomirai Line are decorated in a Honkai: Star Rail design. When passengers exit through the gates, a special voice line from the fugitive Aeon Aha plays.
- Period: Saturday, October 31 to Tuesday, November 10, 2026
- Location: Minatomirai Station on the Minatomirai Line, 3 of the gates on the central ticket gate side
Note: The voice plays only for the fully decorated automatic ticket gates. It plays only when exiting from inside the gates to outside. Each of the 3 gates plays a different voice.
(4) "Planarcadia Album"
CGI illustrations in a relay and life-size character panels are displayed at all 6 Minatomirai Line stations from Yokohama Station to Motomachi-Chukagai Station. Visitors can visit each station and relive the Planarcadia story that began in Ver. 4.0.
- Period: Saturday, October 31 to Sunday, November 15, 2026
- The life-size character panels are displayed until Tuesday, November 10.
| Station | Location | Characters |
|---|---|---|
| Yokohama Station | B2, inside the north-south connecting passage, HAMAB2 | Aeon Aha / Trailblazer (male) / Trailblazer (female) / Sunday |
| Shin-Takashima Station | B2, ticket gate level, beside the ticket machines | Sparxie (火花) |
| Minatomirai Station | B3, Mirai Tube | 不死途 / Silver Wolf LV.999 |
| Bashamichi Station | B2, ticket gate level, rest space on the Yokohama City Hall side | 緋英 / Mortenax Blade (千冶･刃) |
| Nihon-odori Station | B1, ticket gate level, to the right after exiting the gates | Pearl |
| Motomachi-Chukagai Station | B2, ticket gate level, inside the gates on the Chinatown side | Aeon Aha |
Note: Please do not contact stations or station staff with inquiries. When viewing or taking photos, take care not to block passengers' way.
Collaboration Fireworks in Aeon Aha's Color
With special sponsorship from Honkai: Star Rail, red fireworks inspired by Aeon Aha will light up the autumn night sky. The fireworks mark the release of Ver. 4.7 and the arrival of Aeon Aha as the game's first playable Aeon character, and will be launched during "Yokohama Night Flowers × Yokohama Green Expo," a 5-minute fireworks display that lights up the night over Yokohama Port.
Enjoy the "Elation" fireworks that Aeon Aha has set off in Yokohama under the night sky of the city.
- Launch site: Shinko Pier
- Date and time: Sunday, November 15, 2026, 7:00 PM to 7:05 PM
- Web page: https://www.yokohama-nightflowers.com/
Note: The fireworks may be canceled due to weather. For details on viewing locations, please see https://www.welcome.city.yokohama.jp/hottopics/nightflowers/
More Fun: Special Exhibition at Hammerhead Park
A special event commemorating the arrival of Aeon Aha, the Aeon of Elation, is also prepared. During the period, life-size panels and decorations featuring Aeon Aha and other characters will be set up at Hammerhead Park. A large "illusory moon" (幻月) will also appear outdoors, turning Yokohama into the world of Planarcadia.
- Period: Wednesday, November 11 to Sunday, November 15, 2026
- Location: Hammerhead Park
Online Campaign: Find Aeon Aha!
Find the Aeon Aha who ran away somewhere in the streets of Yokohama and report your discovery! Among those who report, winners drawn by lottery may receive special "fun" goods.
Follow the official Honkai: Star Rail X account (@houkaistarrail) and wait for further news. The start date, how to participate and other details are scheduled to be announced later on the official X account.
Special Website for the Collaboration Campaign
A special website for "Star Rail Trailblaze Game in Yokohama" has opened within the "Yokohama Tourism Information" website. Details on the collaboration content will be posted there step by step. The site also offers plenty of information useful for sightseeing in Yokohama.
- Special website: https://www.welcome.city.yokohama.jp/hottopics/houkaistarrail/
Event Story
Aeon Aha, a manga artist active in Planarcadia, ignored her manuscript deadline and ran away to Yokohama aboard the Astral Express. Aeon Aha loves anything fun, and while causing a stir in Yokohama, she is enjoying the sightseeing.
"The deadline is when the real work begins. Isn't that common sense for a manga artist?"
You, visiting Yokohama where the Astral Express has stopped, have been asked to find Aeon Aha. Experience the many "Elation" moments that Aeon Aha has set up around Yokohama, including the original card giveaway, the photo spots and the collaboration fireworks, and uncover her true self hidden behind it all!
