To avoid being AOE'd by a certain useless angel when she blew her horn, the time traveler Qingshuiquan embraced his past life simulator and began to grind. As he was grinding, Qingshuiquan suddenly realized something was wrong. Why were they looking at me more and more strangely? Yukinoshita Yukino from the next class, J, always looked at me with a dazed look. Ms. Yoel, whom I just met, was always looking at me from behind with complicated eyes. And my childhood sweetheart Fumino Furuhashi was also acting strangely. For some reason, she was wary of every male friend of mine who excelled in science. Of course! The strangest thing was that useless angel. I had no connection with her, so why did she come to me on her own initiative?

Awkward, friendless, and without a girlfriend, the protagonist, Hachiman, complains to his classmates who celebrate youth, "They're all liars, they're all lying, just explode already!" His future dream is to "not work"—this is the love story of a high school student who, under the guidance of his homeroom teacher, is taken to the "Service Club" to the school's most beautiful girl, Yukino. An unexpected encounter with the beautiful girl...it sounds like the beginning of a romance story, right?! But Yukino simply can't forgive Hachiman's regrettable and terrible personality! A recurring cycle of problematic youth—what happened to my youth?!