My first time, will you take it all…?” Toru Takase, a worker in a construction company, ends up falling in love with Mishima Yui, a younger childhood friend. Although it was a desperate confession, after learning that this was a bilateral love, Toru's happiness seemed to peak. When Yui said "Please accept all my firsts", Toru knew that Yui had no experience with kissing or H so being an older person, he decided to guide Yui to Yui didn't feel uncomfortable. And then before the first H night, he researched and prepared carefully, practiced in his imagination (H alone). I thought this was a bet, but why did it turn out like this? Non-stop love between the worker and the cute scammer!! The extra part will be the 3P story “Toshishita no Akazuki-chan”?