I Took Advantage Of The Weakness Of My Estranged Childhood Friend (Who Had A Boyfriend) And So I Tried To Make Her My S*x Friend

During a club activity, Kasuga Makoto witnesses his childhood friend Sakura Karen and her lover Kujō Makoto indulging in a lascivious act.

Kasuga quickly filmed the scene with his phone and used the video as blackmail to get Sakura into his room and demanded that she give him a blowjob.