Kiss kara HajimaruKiss Kara Hajimaru; It Started With a Kiss; キスからはじまる; 爱由KISS开始

From Be With You Scans: A girl takes a pencil left out by the sempai who she has a crush on, but she was unknowingly being watched by another boy while taking it. In order to keep her secret, he demands... that... she... kiss... him!