"Kwon Woo-young and Ko Tae-sung were always the closest of friends—inseparable and unbreakable.

Their relationship took a drastic turn when Lee Soo-hwa, a timid classmate from high school, grew closer to Woo-young. Tension and jealousy began to simmer between the two friends, eventually erupting in a mysterious incident that shattered their bond.

Even after enrolling in university, they couldn’t repair their friendship. Struggling with his unresolved emotions, Woo-young chose to enlist in the army, hoping to bury his feelings for Tae-sung. But neither time nor distance could erase the complexity of his emotions. After his discharge, he moved into a new apartment—only to discover that Tae-sung was living in the same building.

What began as innocent friendship now burns with an intensity Woo-young can no longer deny."