Kang Yesol, who was transferred to the region of his alma mater, meets Jeong Hanlim, the owner of a bar named Splitter.

Yesol, who had been drinking heavily at the bar, wakes up the next morning at Hanlim's house and runs away in shock upon realizing that he slept with a man.

After realizing he lost an important USB drive, Yesol had no choice but to return to Hanlim. There, he suddenly recognizes that Hanlim is a junior from the baseball team.

Yesol, who has completely forgotten his high school memories, does not think much of Hanlim, who is hostile toward him, but he gradually begins to recall the past that he had once forgotten.

"Sunbae, People like you should just die."