A college student helping out at the convenience store Suigendo at home.
Character experience
His brother died in a traffic accident, while Hayato survived, which left him feeling guilty. His childhood friend Chisa commissions him to renovate their old house, but the mysterious girl Ying blames him for her brother's death, causing work and personal memories to intertwine.
Suigendo and the university
At 20, Hayato also helps his family run Mizumotodo take on work while continuing his university life. He has known Hojo Sensa since before elementary school.
Facing loss
He is a survivor of an accident alongside his brother. The renovation of the old Hojo family residence and Sato's questioning lead to unforgettable loss and a new daily encounter.
Yuriko Route: Solo singing amid breakdowns
In Yuriko's route, Hayato encouraged Yuriko before her solo debut, even though she was worried about hurting her original team members. She later insisted on singing a cappella despite the lights going out and the microphone wouldn't be powered, completing the stage.
Yang Shi Route: Beautiful Air Conditioning mediates disputes
In Yoshi's route, Hayato argues with Yoshi over breaking confidentiality by informing Misora and Aina about the stalking and harassment. Mei Air mediated the conflict between the two.
Qiansa Route: Face-to-face explanation and puzzle solving
On Sensa's route, Hayabusa listens to Aino and Miku's advice and decides to go with Ai to meet Sensa and explain his thoughts in person.
On Sensa's route, Hayato and Sensa get stuck on the last puzzle left by their grandfather, but later receive the answer from Rin, who arrives.
English route: Doll key and basement
During Ei's route, Hayato also rushed to the basement, struck Kido with a pot, and rescued the restrained Ei. After regaining consciousness, Kido escaped and locked Shunya and Eia in the basement.
Qiansa Route: Key delivery and the secret door
During Sensa's route, Hayabusa and Sensa confronted Kito at the old residence. After the keys were retrieved, Qiansa handed them over to Ying at the old residence.
In the Sensa route, Hayaya's words hinted at Sensa. She finds the key to turn the music box in the rabbit plush toy her grandfather gave her, turns the living room music box, and opens the hidden door.
Related entries
- Appearances:Since Memories Under the Starry Sky
- Childhood partners and clients:Chisa Hojo (Under the Starry Sky)
- Childhood Companion:Ise Yoshi (Under the Starry Sky)
- Criticized by him:Sato Meiying (Under the Starry Sky)
- Featured works:Since Memories Under the Starry Sky
- Character Design:U35
- Brother:Takaya Mizumoto (Under the Starry Sky)
- Younger sister:Misora Mizumoto (Under the Dome)
- Sister's friend:Pursiainen (Under the Stars)
- Childhood friends:Chisa Hojo (Under the Starry Sky)
- Living and Activity Locations:Shuiyuan Hall (Under the Starry Sky)
- Living and Activity Locations:The Hōjō Family Residence (Under the Starry Sky)
- Yuriko, who was encouraged by herself before her solo debut (Yuriko route):Yuriko Oyama (Under the Starry Sky)
- Yang Shi (Yang Shi Route), who argued because he requested prior consultation but reconciled after mediation by Jingmei Air Conditioning:Ise Yoshi (Under the Starry Sky)
- Miku intervenes to mediate her dispute with Yoshi (Yoshi route):Misora Mizumoto (Under the Dome)
- Aono (Chisa route), who urges herself to explain her thoughts to Chisa in person with Mikura:Pursiainen (Under the Stars)
- Miku (Chisa's route), who urges herself to explain her thoughts to Chisa in person alongside Aino:Misora Mizumoto (Under the Dome)
- Rin (Chisa's route) gives himself the answer when the puzzle is finally blocked:Rin Ina (Under the Dome)
- After being restrained in the basement by Kido, Ying (Ying route) arrives to rescue herself:Sato Meiying (Under the Starry Sky)
- Together at the old house, they questioned Kido about Sensa (Sensa route):Chisa Hojo (Under the Starry Sky)
- Qiansa (Qiansa route) who finds the music box key and opens the secret door prompted by his own words:Chisa Hojo (Under the Starry Sky)
References
- MAGES.: Under the Stars Chinese official website
- MAGES.: Stories Under the Dome
- MAGES.: Hayato Mizumoto
- Manbo: Shinsu Memories - All routes played under the stars
- MAGES.: Sensa Hojo
- MAGES.: Satomi Ei
- MAGES.: Ise Yoshi
- MAGES.: Characters Under the Dome mizumoto_misora
- MAGES.: Characters Under the Dome pursiainen_aino
Data compiled on: 2026-10-07.