A boy who returns to Kazeura and manages the girls' dormitory.
Personal profile
He is skilled in housework and cooking, and after encountering a bird on a hill, he helped rebuild the Soaring Club. His childhood friend Yang Yu and other companions worked alongside him to help him fly the glider.
Main Story (Switch Version)
Bi finds a paper airplane on Windmill Hill, finds a bird unable to move due to a broken tire, and uses his bicycle repair tools to fix the wheelchair tire.
Kotori nearly drowned while bathing at Tobiwo-so, but Ao rescued her.
Little Bird Route (Switch version)
Aoi Amane relayed Iska's claim about the correct answer, then chased after the car carrying Kodori back to Tokyo on his bicycle.
The bird route
At the end of this route, Bi rejoined cycling.
Amane Route (Switch version)
After reading Iska's letter, Amane explained to her that the voyage log hidden in the bird's room expressed Iska's true feelings.
FLIGHT DIARY/Soaring Club After (Follow-up to the Kotori Route)
During the Soaring Club After, when the plan to leave the club and fly unfolds, Bi begins to develop a desire to build bicycles.
In the After Department, Bi wants to get a job, while Xiaoniao wants to go to university. The two argued about their future choices.
CRUISE SIGN (PS3) / Hotaru's additional story
In the PS3 version of FLIGHT DIARY Hotaru's story, Aoi's leg pain flared up again, and she received Hotaru's careful care. In this additional story, Hotaru becomes his lover.
CRUISE SIGN (PS3) / Amane's understanding of confession
In the PS3 Amane route, Bi confessed to Amane a year ago, but the two have not been in contact since; Amane still thought the two were already dating.
Related entries
- Featured works:Spread your wings in this vast sky
- Childhood Sweethearts:Himejo Ryū (spreading wings in this vast sky)
- Relevant venues or organizations:Soaring Department (Soaring Wings in This Firmament)
- In the main Switch story, when they first met, he fixed her wheelchair tires:Feathered birds chirp (spreading their wings in this vast sky)
- In the main Switch story, she saves her from drowning in the bathroom:Feathered birds chirp (spreading their wings in this vast sky)
- The Switch bird route listened to her relay Iska's statement:Moon-gazing heavenly sound (spreading wings in this vast sky)
- Switch Xiaoniao Line riding a bike to chase back to Beijing Auto:Feathered birds chirp (spreading their wings in this vast sky)
- Explain the meaning of the Iska Voyage Log to Amane (Switch Amane route):Moon-gazing heavenly sound (spreading wings in this vast sky)
- Wants to go to college, argues with Bi about future choices (FLIGHT DIARY・After):Feathered birds chirp (spreading their wings in this vast sky)
- Aoi caring for recurrent leg pain, Hotaru becoming lovers (CRUISE SIGN PS3・Hotaru Story):Jicheng Firefly (spreading wings in this vast sky)
- Amane, who confessed to Aoi a year ago and thought she was dating (CRUISE SIGN PS3・Amane route):Moon-gazing heavenly sound (spreading wings in this vast sky)
References
- MAGES.: Spread your wings in this sky CRUISE SIGN
- MAGES.: Spread your wings in this sky CRUISE SIGN
- MAGES.: Spread your wings in this sky CRUISE SIGN
- Undefined World: Spread Your Wings in This Sky - Game Experience
- Pepsi Maso: Wings Spread in the Sky: Main Story Impressions and Route Branches
- Reading the FLIGHT DIARY Clearance: Spreading Wings in This Sky
- Safi: PS3 Version Spread Your Wings in This Sky CRUISE SIGN Part 2
Data compiled on: 2026-10-10.