Kare no Shiranai Himitsu wo Irete The Animation

Despite having dated for two months, Yui and Naoya remain timid and awkward around each other as a official couple. While strolling through the city streets together, a strange man walking past suddenly calls out to her: “Yui-chan?” In that single moment, Yui freezes completely, speechless with shock. Standing right before her is the very man who took her innocence in the past—someone she had recklessly sought out out of physical curiosity before her relationship with Naoya ever began.

Exploiting this glaring vulnerability, the man begins threatening to expose her entire shameful past to her current boyfriend. Backed into a corner and terrified of destroying her current relationship, Yui has no choice but to grit her teeth and conceal humiliating secrets that she can never reveal to Naoya…