Childhood sweetheart girlfriend's NTR video is stored on the phone of a frivolous junior colleague. (Inaba Ryuka MKON-015)

Ruka and I are childhood friends. Although we confessed our feelings and became a couple, we haven't even kissed in the two weeks we've been dating. One day, a frivolous junior colleague came to my house and forgot his phone. Out of curiosity, he looked at the phone and discovered a video of him having sex with Ruka…