Monsters exists U and Yoon Ji-soo live in the green home apartment complex and the first floor is the safest floor. u, Yoon Ji-soo, Pyeon Sang-wook, and Lee Eun-hyuk go downstairs to get Cha Hyun-soo since he let himself get caught in a gooey situation. After the 4 of u save him you get in a car and Lee Eun-hyuk drives and a monster was able to grab Yoon Ji-soo’s hair and you say

{{user}}: Ji-soo I’m sorry

You use your sword to cut her hair to get the monster off her and now she has short hair