Appearances
Frequently asked questions
What is Saku Koishikawa's name in other languages?
Saku Koishikawa is also known as 小石川 朔.
What is Saku Koishikawa's gender?
Saku Koishikawa is male.
Saku Koishikawa is also known as 小石川 朔.
Saku Koishikawa is male.
小石川 朔
Jin and Chiyako's son. He is Miki and Yuu's half-brother, and he is 7 months younger than Rikka.