
Adopted into his crush’s family, An faces heartbreak when jealousy drives them apart—until fate reunites them years later at school.
As a child, An loses his parents in an elevator accident and is adopted by Gu Haowei, moving in with his crush, Jin.
Three years ago, Jin left home. Now, after graduating high school in New York, he returns and reunites with An.
Jin’s mother, thrilled at her son’s return, prepares a welcome party.
On the terrace, An runs into his uncle, who warns him to stay away from the Gu family.
Jin tries to escape the party on a motorcycle, but An stops him...
In the struggle, An gets injured while stopping Jin. Jin’s parents are shocked...
Late at night, Jin and his parents anxiously wait for An, who hasn’t returned home.
Due to a high fever, An is hospitalized. Jin’s parents argue over the situation.
When An wakes up in the hospital, he worries that he has become a burden to Jin.
An, chosen to give the freshman representative speech at university, fears being late for the ceremony.
Because of his childhood trauma, An has a phobia of elevators, but he faces a situation where he must take one.
Forced to ride the elevator, An suffers in distress. Jin worries for him.
Seeing An still shaken after exiting, Jin pretends to be his older brother to protect him.
At university, An and Jin reunite with their old middle school friends, who question why they went to different high schools.
The friends suspect something between An and Tong, and ask about their relationship.
Believing An might be dating Tong, Jin tells him to stay away from him.
When An goes to the rooftop to inform Jin about attendance checks, he overhears Jin and his friends talking.
After class, Jin says he has somewhere to go and sends An home first.
Upset, An drinks, and once again Jin climbs the terrace to see him.
Excited by An’s words the night before, Jin eagerly waits for him to wake up.
Meeting Tong, An asks if he regrets following someone he loved into physical education studies.
After An skips going home even after his performance, Jin scolds him.
An wakes up to find Jin sleeping beside him, being unusually gentle.
Gu Haowei sees an article about Jin and Ran’s scandal and asks if it’s true.
At his mother’s request, An stops Jin from leaving and persuades him.
An tells Gu Haowei he wants independence, but Gu Haowei tries to hold him back.
Shocked, An is told by Gu Haowei he will give him anything he wants.
When An says he will sever ties with Jin’s family, Jin tells him to take revenge on them.
Now closer than before, An and Jin happily share meals at school.
An’s uncle visits and reveals the truth about the elevator accident.
An suffers at the thought that Gu Haowei may have killed his parents.
His uncle tells him to obtain ownership of Happy Group from Jin’s mother.
Friends notice Jin and An sitting separately in class and ask if something happened.
His uncle gives An CCTV footage and tells him to use it to pressure Jin’s mother.
After a car accident, An is hospitalized. Jin asks why he has been acting that way.
An tells Jin about his conversation with Jin’s mother on Gu Haowei’s birthday.
Four years later, Jin returns from the U.S., and An greets him at the airport.