Responses
SPOILER Alert! (Hopefully this will provide enough space for those who don't want to read the spoiler. Sorry if it doesn't)
In the game if you don't try to convince Yoosung that you are not Rika he goes crazy when he meets the player in real life and realizes they don't look like her. He triggers the bomb in the apartment on purpose killing the player and himself.
This is really cute. But Yoosung and his reaction to Hana at the end of chapter 22 ...I can't decide if I want to see Yoosung's Yandere mode or not