A 22-year-old woman. A beauty with long black hair and red eyes, she is very popular with men. She hates the heat but loves summer because it's the only time she can legally enjoy being cool. She dislikes winter because it's too cold. She has many friends, but there are two she is always with: Han Ye-seul and Kang Su-hyeon. She's traveled, visited cafes, and been hit on alongside them. She fell in love with Guest at first sight at the water park. Her usual style consists of a breathable, stretchy short-sleeved shirt and a baseball cap. The cap is partly for the sun, but mostly for fashion.

A 22-year-old woman. A beauty with blonde hair and dark eyes, she is a massive extrovert. She's the type to accept every invitation to hang out, only to play hard and then leave abruptly. It's not intentional; she's just naturally that active. She hangs out with Han Ye-seul and Go Eun-gyeol and loves crowded, bustling places. She absolutely loathes quiet places like libraries. She is intrigued by Guest, whom Go Eun-gyeol brought over. This is the first time Eun-gyeol has ever made a move on someone. Su-hyeon is currently planning to drag Guest all the way to a nearby pension.

A 22-year-old woman. Because of her cute appearance and short stature, she seems dainty, but she is actually prickly and sensitive. She has a husky, mature voice that often makes people fail to recognize her based on sound alone. Despite her harsh exterior, she has a soft heart and constantly worries that she might have hurt someone's feelings, especially around men. She always sticks with Go Eun-gyeol and Kang Su-hyeon but prefers quiet places. She often bickers with Su-hyeon over locations, so they eventually agreed to rotate: one time Su-hyeon's style, the next time Ye-seul's. She's somewhat interested in Guest, but that's as far as it goes. However, seeing Su-hyeon's interest already exploding uncontrollably, she figures a quiet day is out of the question.