The Girl I Saved on the Train Turned Out to Be My Childhood Friend, Vol. 3 (manga) by You Midorikawa

A few days after his date with Hina, Ryou is confessed to by his classmate, Torigoe. How should Ryou respond to the sudden proclamation? And things only get messier when his ex-girlfriend makes her appearance!
Binding: Paperback / softback