Throughout this route, Jumin will struggle significantly with his emotions and thoughts. Having never truly experienced a relationship, and having suppressed his feelings for the sake of efficiency, his sudden interest in the protagonist sends him into a tailspin. With Sarah doing whatever she could to win Jumin's affections, Jumin becomes exceedingly paranoid, afraid that she and Glam will kidnap his beloved cat, Elizabeth 3rd. This leads to Jumin locking his pet in a large cage. Seven originally suggests the protagonist visit him because of his inability to work after becoming paranoid about Elizabeth 3rd's wellbeing and Jaehee arranges for the protagonist to be sent to his penthouse. When the protagonist is put in danger by the appearance of the mysterious hacker, Jumin has her live with him in his suite. However, her visit soon becomes more like a prison sentence as Jumin forbids her from leaving his apartment for her own safety. His paranoia is only aggravated after Elizabeth 3rd manages to escape and disappear. Jumin comes to the conclusion that he was really just projecting his unrequited feelings for Rika onto Elizabeth 3rd, and with his cat's disappearance he can now direct his efforts to something else. He portrays affection towards the protagonist, but so many emotions jumbled up inside him, that he ended up seemingly obsessive. He plans on keeping her with him until the hacker issue and Glam Choi's scheme has been resolved, to ensure her safety.
Normal Ending
In the normal ending, things happen similarly to the good ending, except Jumin resigns and he doesn't reveal you are his girlfriend to the press. After a time skip to a year later, Jumin and his employees set up a surprise birthday party for you. The employees call you Mrs. Han and say how helpful and nice you've been. Jumin is proud to have you as his wife.
Bad Endings
Like all the other main characters, there are 3 bad story endings in Jumin's route, and 3 bad relationship endings if the player fails to get enough hearts by the various game branches within his route.
Bad Story Ending 1
The player is called into a meeting with Jumin and Jaehee. Sarah and Chairman Han interrupt it. After Chairman leaves, the player and Sarah get into a fight. Jumin enjoys watching it, and even asks Jaehee to get him some popcorn. After a time skip, the employees are talking about Jumin's girlfriend (you) being the new sales manager. Jaehee later officially introduces the player in the meeting as a new member to the company.
Bad Story Ending 2
The player acts obsessive towards Jumin, thus provoking his desires to 'lock her up'. The player's actions does not help Jumin solve his tangled emotions, but instead provoke darker thoughts and emotions inside him. Eventually, the only option available to the player is to ask Jumin to not let her ever escape. Jumin then ties the player up, put tracking gadgets on the player, alarms around the penthouse.
Bad Story Ending 3
The player acts as if she is imprisoned, continuously reject Jumin, and wants to escape the penthouse. V later comes in and convinces him to let you go home. Jumin is sorry for not letting you go and hopes to see you tomorrow in the dress he got you. When the player gets home, the hacker is waiting for you. He wants revenge on Seven, but Seven's too strong, so he wants to make him feel guilty. The hacker talks about a switch and seems to activate a bomb in Rika's apartment, killing both the hacker and the player. So it is proven that Rika's apartment is not safe yet, just like what Jumin stated.
Bad Relationship Ending 1
Bad Relationship Ending 2
Bad Relationship Ending 3
Good Ending
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Having collected sufficient evidence against Glam Choi and Sarah Choi, he invites them to RFA's party and publicly denounces them in front of his father. It is revealed that Glam Choi and Sarah are sisters, with Sarah having undergone extensive plastic surgery to differentiate her appearance from her sibling. It is revealed that the two are deeply in debt, and the scheme to marry Chairman Han and Jumin was hatched to get them back into financial stability. At the end of this call out, he proposes to the player in front of the paparazzi.
After Ending
It is revealed that the player and Jumin has gotten married shortly after the events of the Good Ending. The RFA members discuss about the prospects about their relationship, before going to the airport to welcome them back from their honeymoon. As both are swamped by reporters, Jumin requests the player to 'put [herself] above everyone's eyes... and put [him] in second place' as he wishes for her to choose 'a selfish life where [she] puts [herself] above everything else. The ending concludes with Jumin answering the reporters about how he truly loves his wife.