Jun-won, who is a denial by person, falls in love with his straight older brother, Jae-hyung, who is educated in the same way, and finds out that the relationship between Jae-hyung's people around him is unusual.
Jaehyun and his ex-lover Jiyeon, who is his older sister, are more interested in Jaehyun than when they started dating, even though he found out about his unrequited love.
I can't quite understand what Jaehyun is thinking despite the strange hostility felt by Wonwoo, who is always next ...