The Girl I Saved on the Train Turned Out to Be My Childhood Friend, Vol. 7 (light novel) by Kennoji
With the arrival of the school festival, the whole campus is filled with cheer. Ryou's class is almost done with their film, and the drama club has even requested help from Hina, their lead actress! As she takes another step toward her dream with Ryou's support, he begins to confront the real reason he's so uninterested in romance. With the festival drawing to a close, feelings come to a head and paths diverge. What's really in Ryou's heart?