Appearances
Frequently asked questions
What is Hidero Kosaka's name in other languages?
Hidero Kosaka is also known as 小坂秀郎, Paisen, パイセン.
Hidero Kosaka is also known as 小坂秀郎, Paisen, パイセン.
小坂秀郎
A 20-year old man who is rich and has long graduated from high school.