Chitose Shirakawa

Itsuki's lover and also Amane's mischievous friend. However, they don't get along well with Itsuki's father. Their birthday is May 5th. They have excellent athletic abilities and can handle cooking without any issues, but they tend to act on whims, such as making Valentine's chocolates in a Russian roulette style, which annoys Amane. After learning Amane and Mahiru's secret, they became closer to Mahiru and became best friends. They were in a different class in their first year, but from the second year, they joined the same class as Amane and the others. In middle school, they were the ace of the track and field club, but because they had better grades than a senior who liked Itsuki, they were harassed by those who were jealous, so they didn't join the track and field club in high school.