Fire in His Fingertips: A Flirty Fireman Ravishes Me with His Smoldering Gaze Vol. 2 (manga)

Ryo's relationship with her childhood friend Souma has taken a sexy, surprising turn since she moved in next door to him. He says he wants her, but how serious is he? The firemen in Ryo's life are all the same: they play games, they sleep around, and they won't commit. A letter arrives inviting Ryo and Souma to a school reunion. Not only does Ryo have to come face to face with a beautiful girl from Souma's past, she's stuck in close quarters with him! And the heat is getting unbearable...