Shuichi Kagaya

Shuichi Kagaya (加賀谷修一, Kagaya Shūichi) is a young man who can transform into a live dog mascot costume. After meeting Claire Aoki, he started helping her find her sister.

Plot
Shuichi was speaking with the principal, turning down the principal recommendation. He was living a normal school life. Later Mifune came to him to tell him that she was chosen to receive the principal recommendation. She realized Shuichi had turned the offer, but he told Mifune that she earned it herself. Later while playing on his phone, due to his great smell, he smelled a fire and went to see. As he smelled a girl inside, he thought it won't have enough time to call for help, so he transformed into a dog mascot. He entered the building and broke the wall to save the girl and left her on the ground.

On the next day, he realized he lost his phone and arriving at school he smelled the girl he saved, who were holding his phone. She saw him transforming into a monster and wanted to speak with him. At the school roof, he tried to deny he was a monster, but the girl, Claire, pushed him down from roof. While falling he transformed and then jumped back on the roof. She then started questioning him what was he and threatening she will reveal his secret. But Shuichi had no idea, and told her, he just transformed one day. On the way to her home, she introduced herself and showed him a coin she found, but Shuichi didn't know anything about it. In her apartment, she explained she was looking for her sister, who was a monster like him.