Original: 上瘾
Two high school students become entangled in a wildly conflicting emotional relationship that erupts when they discover they are now step-brothers.
Luo Yin grapples with his mom’s remarriage, while Gu Hai debates attending his father’s wedding.
A gift sparks confusion, Gu Hai secretly follows Luo Yin, and more underwear drama unfolds.
Gu Hai shows off with 100 pull-ups, while Luo Yin plots revenge, leading to classroom chaos.
Gu Hai drugs Luo Yin’s drink, then defends him when classmates insult Luo Yin’s mother.
After a drunken night, Gu Hai faces his father’s anger, while Luo Yin invites him fishing.
Gu Hai’s girlfriend grows jealous at lunch but softens toward Luo Yin’s selfless kindness.
Family meddling intensifies as Gu Hai secretly moves in with Luo Yin, sharing daily life.
A basketball injury deepens their bond, but Gu Hai’s bold advance sparks Luo Yin’s rejection.
Gu Hai sides with Luo Yin during a fight, angering Lu Lu, while Luo Yin doubts Gu Hai’s help.
Secrets unravel: Gu Hai dumps Lu Lu, meets Luo Yin’s mom, and learns their shocking tie.
Gu Hai spirals into drinking, while Luo Yin seeks him—only to be abducted on the way.
Fearful of exposure during exams, Luo Yin still ends up undressed with Gu Hai beside him.
Yang Meng’s closeness sparks Gu Hai’s jealousy, while Luo Yin encourages his dad to remarry.
Luo Yin feels abandoned after his father’s wedding, as his mother pushes him to study abroad.
Luo Yin reconnects with ex Shi Hui, making Gu Hai jealous as she reappears at school.
