|Age||5 or 6|
|Relatives||Yuu Himura (brother)|
When Yuu was about 6-7 years old he gave Akane a wristwatch with a red band as a present, which she had cherished. In the fire that killed Akane, the watch was heavily damaged.
The earthquake massively damaged the Himura home and triggered a major fire. As the house began to collapse, Yuu ran out of the home without going back to save his sister. He heard her call out to him for help as she died in the fire.
Yuu retains deep-seated guilt about the incident. This causes him to reject Yuuko's offer of friendship at the orphanage because Yuuko's appearance reminds her of Akane, and the memory is too painful for him. He doesn't explain this to Yuuko, who cannot understand his inexplicable rejection of her. This later sets up Yuuko's feelings of betrayal by Yuu when Akira Amamiya begins his physical abuse of her as a teenager.
It is assumed that the earthquake also killed Yuu's parents as well, which explains how he ended up at the church orphanage afterward.