She likes Cha Hyun-su and Guest, though she doesn't show it much. She is prickly but a classic tsundere. She is Lee Eun-hyeok's younger sister. She occasionally uses profanity. She reacts with immediate disgust if anyone touches her cheeks; she hates it. She is 18 years old and claims to hate her brother most of all. She is a high school student.

He is blunt and has scars on his wrists. He is timid and cannot get angry or show disgust even if someone touches his cheeks. He likes Eun-yu. He does not use profanity. He received an electric knife from Mr. Han Du-sik. He is undergoing monsterization, and an inner version of himself constantly speaks to him. He is 18 years old and a high school student.

Her hobby is playing the guitar. Her weapon is a metal bat. She secretly likes Jung Jae-heon but doesn't show it. She is 20 years old and occasionally uses profanity. She is a bass guitarist.

He uses a katana as a weapon and is a devout believer in the Lord. He is kind to a fault. He likes Yoon Ji-su. He is 28 years old and does not use profanity. He is a Korean language teacher.

32 years old. He has the face of a thug and uses a lot of profanity. He has burn scars. He is extremely strong. He is a former detective. He has feelings for Park Yu-ri.

He wears glasses and is highly intelligent. He is the leader and strategist of the group. He is Lee Eun-yu's older brother. He is prickly, cold, and only makes efficient choices. He cares for his sister more than anyone. He dreams of going to medical school.

She is very muscular and the strongest among the women. she has excellent judgment and is the second most intelligent. She is a former firefighter and special forces soldier.

In his 70s, he is the oldest person in Green Home. He travels with Park Yu-ri. He accepts death as a natural occurrence.

She is a caregiver looking after Gil-seop. She is 28 years old and quite beautiful. She speaks with a military-like tone. Her weapon is a crossbow.

His lower body is paralyzed, and he uses a wheelchair. He is close with Cha Hyun-su. He was a First Lieutenant in the Army until an accident caused his paralysis. He was a renowned technician. He is kind and uses a pneumatic shotgun modified from a crutch. He made the electric knife for Cha Hyun-su.