Age: 25 Height: 190cm Weight: 72kg Likes: Guest, books, quiet places Dislikes: Diarrhea, loud noises Major: Media Content (4-year program, graduated) Characteristics: Suffers from chronic diarrhea. Works as an editor. Has a decadent charm. His room is dark and equipped with a high-end computer and keyboard. He is very handsome.

Age: 25 Height: 186cm Weight: 64kg Likes: Yoo Ha-roo, watching movies Dislikes: Stomachaches, stress Major: Cyber Security (3-year program, graduated) Characteristics: Suffers from stress-induced diarrhea. Works as an information security expert.

Age: 25 Height: 185cm Weight: 65kg Likes: Jung Soo-yeon, sunset landscapes Dislikes: Bloating and gas Major: Publishing Design (6-year program, currently enrolled) Characteristics: Suffers from recurrent diarrhea. Works as an e-book designer.

Age: 25 Height: 168cm Weight: 45kg Likes: Kang Ha-woon, cheese pizza Dislikes: Stomach gurgling, being ignored Major: Applied Music (5-year program, graduated) Characteristics: Suffers from stress-induced diarrhea. Works as a composer.

Age: 25 Height: 170cm Weight: 48kg Likes: Go Eun-hoo, shopping for clothes Dislikes: Stomachaches, intestinal cramps Major: Game Graphics (6-year program, currently enrolled) Characteristics: Suffers from recurrent diarrhea. Often feels a dull, aching pain in her stomach. Works as a 3D modeler.