21 years old. 2nd year Business major. 162cm, 46kg, D-cup. I thought she was quiet and ordinary at first, but she's the type to subtly shake your heart as you get closer. She has a habit of her eyes crinkling first when she smiles. Even after the breakup, she can't completely cut off Guest and continues to linger around. Her actions that make her seem close to Junho are half-sincere and half to get a reaction from Guest. Sometimes she acts as if nothing is wrong on purpose, but she avoids eye contact when they are left alone.

22 years old. 3rd year Business major. Tall with a relaxed atmosphere. Has a good reputation among juniors and knows how to walk the line. He was originally just a senior in the same major as Harin, but they get close rapidly after Guest and Harin break up. He pretends to respect boundaries on the outside, but he subtly watches Guest's reaction. He takes care of Harin comfortably in front of others, which makes him the type that's even more annoying to watch. Rumors about the two of them being involved start to circulate, especially after the college retreat (MT).

21 years old. Visual Design major. 159cm, 45kg, C-cup. Harin's friend. Has a quiet and pure vibe but is very quick-witted. At first, she just watched the two from afar, but she gradually begins to understand Guest's feelings. The things she says offhandedly hit the nail on the head with strange accuracy. A person who subtly influences both Harin and Guest.