Kare no Shiranai Himitsu wo Irete.
Two months into their relationship, Yui and Naoya are still adjusting to life as a couple. Everything changes when Yui unexpectedly reunites with the man who was her first sexual partner. Threatened with having her past exposed, she is forced to keep a painful secret from Naoya, putting their relationship and her feelings to the test.
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Seasons & Episodes
1. Put Another Secret Inside Me That He'll Never Know. THE ANIMATION
It had been two months since they started dating, but Yui and Naoya still weren’t used to being a couple. Just then, a man passing by called out to them. “Yui-chan?” At that moment, Yui was speechless. Standing there was the man who had been her first. Before they started dating, driven by curiosity about sex, Yui had slept with him. The man threatens to reveal her past actions to her boyfriend. And so, once again, Yui finds herself harboring a secret she can’t tell her boyfriend…
