Episode 1
As a child, An loses his parents in an elevator accident and is adopted by Gu Haowei, moving in with his crush, Jin.
Episode 2
Three years ago, Jin left home. Now, after graduating high school in New York, he returns and reunites with An.
Episode 3
Jin’s mother, thrilled at her son’s return, prepares a welcome party.
Episode 4
The party begins, and rumors about Jin spread among the guests.
Episode 5
On the terrace, An runs into his uncle, who warns him to stay away from the Gu family.
Episode 6
Jin tries to escape the party on a motorcycle, but An stops him...
Episode 7
In the struggle, An gets injured while stopping Jin. Jin’s parents are shocked...
Episode 8
Worried about An, Jin goes to check on him in his room.
Episode 9
Haunted by trauma, An dreams again of the elevator accident.
Episode 10
Late at night, Jin and his parents anxiously wait for An, who hasn’t returned home.
Episode 11
Jin climbs over the terrace to check if An is in his room.
Episode 12
Due to a high fever, An is hospitalized. Jin’s parents argue over the situation.
Episode 13
When An wakes up in the hospital, he worries that he has become a burden to Jin.
Episode 14
An, chosen to give the freshman representative speech at university, fears being late for the ceremony.
Episode 15
Because of his childhood trauma, An has a phobia of elevators, but he faces a situation where he must take one.
Episode 16
Forced to ride the elevator, An suffers in distress. Jin worries for him.
Episode 17
Seeing An still shaken after exiting, Jin pretends to be his older brother to protect him.
Episode 18
Jin asks why An laughed at his words.
Episode 19
At university, An and Jin reunite with their old middle school friends, who question why they went to different high schools.
Episode 20
The friends suspect something between An and Tong, and ask about their relationship.
Episode 21
Seeing a close photo of An and Tong, Jin becomes jealous.
Episode 22
Believing An might be dating Tong, Jin tells him to stay away from him.
Episode 23
When An goes to the rooftop to inform Jin about attendance checks, he overhears Jin and his friends talking.
Episode 24
To side with Jin, his friends badmouth An in front of him.
Episode 25
After class, Jin says he has somewhere to go and sends An home first.
Episode 26
Following Jin, An sees him hugging someone else.
Episode 27
Upset, An drinks, and once again Jin climbs the terrace to see him.
Episode 28
Excited by An’s words the night before, Jin eagerly waits for him to wake up.
Episode 29
Seeing An act as if he forgot last night, Jin consults Ran.
Episode 30
Meeting Tong, An asks if he regrets following someone he loved into physical education studies.
Episode 31
Worried, Jin asks An whom he met after returning home late.
Episode 32
Gu Haowei scolds Jin after seeing his poor grades.
Episode 33
Concerned about Jin’s rebelliousness, his mother calls for An.
Episode 34
She asks An to talk with Jin.
Episode 35
Once again, An follows Jin after class to see where he goes.
Episode 36
At a bar, Jin tries to send An home, but An refuses.
Episode 37
Ran intervenes when he sees An and Jin fighting.
Episode 38
After An skips going home even after his performance, Jin scolds him.
Episode 39
Someone tells An that Jin and Ran are dating, shocking him.
Episode 40
Heartbroken, An drinks the alcohol given to him by someone.
Episode 41
Jin carries the drunken An to his room. An wakes up.
Episode 42
Still drunk, An says something unexpected to Jin.
Episode 43
An wakes up to find Jin sleeping beside him, being unusually gentle.
Episode 44
Gu Haowei sees an article about Jin and Ran’s scandal and asks if it’s true.
Episode 45
Learning that An likes men, Gu Haowei is shocked.
Episode 46
Jin realizes An’s confession wasn’t about him.
Episode 47
Learning that An likes Tong, Jin is consumed by jealousy.
Episode 48
Overwhelmed by jealousy, Jin makes a wrong choice.
Episode 49
Guilt-ridden for hurting An, Jin plans to leave home again.
Episode 50
At his mother’s request, An stops Jin from leaving and persuades him.
Episode 51
An tells Gu Haowei he wants independence, but Gu Haowei tries to hold him back.
Episode 52
Gu Haowei reveals the truth about the elevator accident.
Episode 53
Shocked, An is told by Gu Haowei he will give him anything he wants.
Episode 54
An and Jin move into the dorms. An urges Jin to return home.
Episode 55
When An says he will sever ties with Jin’s family, Jin tells him to take revenge on them.
Episode 56
Jin confesses his long-hidden feelings for An.
Episode 57
Moved, An confesses his own feelings to Jin.
Episode 58
The two confirm their love and share a sweet morning together.
Episode 59
Now closer than before, An and Jin happily share meals at school.
Episode 60
Their friends notice how different they’ve become.
Episode 61
Realizing he wrongly doubted An and Tong, Jin feels guilty.
Episode 62
Haunted by past trauma, An struggles with intimacy with Jin.
Episode 63
An wonders whether to attend Gu Haowei’s birthday party.
Episode 64
An’s uncle visits and reveals the truth about the elevator accident.
Episode 65
He says Gu Haowei adopted An as part of a deal.
Episode 66
An suffers at the thought that Gu Haowei may have killed his parents.
Episode 67
An confronts Gu Haowei, telling him his uncle came.
Episode 68
An suddenly leaves, and Jin asks his mother what happened.
Episode 69
An asks Jin to hold him.
Episode 70
An tells Jin to go back home.
Episode 71
An meets his uncle and asks for CCTV footage.
Episode 72
His uncle tells him to obtain ownership of Happy Group from Jin’s mother.
Episode 73
Friends notice Jin and An sitting separately in class and ask if something happened.
Episode 74
Jin demands to know why An is acting so differently.
Episode 75
His uncle gives An CCTV footage and tells him to use it to pressure Jin’s mother.
Episode 76
An runs away with his uncle’s evidence.
Episode 77
After a car accident, An is hospitalized. Jin asks why he has been acting that way.
Episode 78
An tells Jin about his conversation with Jin’s mother on Gu Haowei’s birthday.
Episode 79
Jin tells Gu Haowei that he loves An.
Episode 80
Four years later, Jin returns from the U.S., and An greets him at the airport.
Episode 81
Jin and An visit An’s parents’ graves together.