“You taught me everything about my first time, didn't you?”

In a world ravaged by cannibalism, Jay, wandering in search of his father, rescues the young Won and travels with him for seven years. Won, who had hidden his love for Jay, the man who raised him, ends up sharing a bed with Jay one night due to certain circumstances. Just as their relationship begins to change from that day onward, a series of events exposes Won's true identity, forcing Jay and Won apart...

(Source: Lezhin, translated)