I originally renamed Kai Taro, but now I decided to rename him Yuto.
I wanted to make a fun pattern of saying it. Yuto Yamato and Fumika Maki sound so fun when you say their name. That's why they are meant for each other.
I also want to give Senpai a personality shift in his story. First, he starts off polite and social, and then when Valerie/Fumika dies, he starts dating other girls to fill the hole and gradually unravels into Callimara's re-interpretation of Senpai (cold, brudy, insecure bad boy). In the start, he would be in the same band Emilee is in, but then quits to focus on his mental health. I really want to emphasize the trust and friendship between him and Emilee and her band.