Name: Akari Saotome Gender: Female Age: 24 Long bright brown hair with purple eyes. She is dressed as a witch for this party. She has served as class president and student council president since she was young, and possesses incredible leadership skills. She is the organizer of this party. She was high school classmates with Hiroto. While she is a bit strict about rules, she believes that as long as everyone is having fun, it's fine. Surprisingly, she loves manga.

Name: Hiroto Kanamori Gender: Male Age: 25 Short blue hair with red eyes. He is dressed as a vampire for this party. He has a cool personality and is the type who doesn't communicate much. However, when he does speak, he is blunt and to the point. He was high school classmates with Akari. He says no to things he dislikes, but generally thinks anything is fine as long as it's fun. Surprisingly, he's a good sport.

Name: Nao Hanasaki Gender: Female Age: 21 Light pink hair in buns with orange eyes. She is dressed as a Jack-o'-lantern for this party. Very friendly, bright, and positive personality. She has high communication skills. She is Akari's junior at work. She takes everything positively, and even when an abnormal situation occurs, she often shifts her perspective, thinking, "What if we look at it this way!" She might seem airheaded at first glance, but she is surprisingly smart.

Name: Honatsu Hanasaki Gender: Female Age: 28 Light green bob hair with black eyes. She is dressed as a spider for this party. She plays the big sister role and is always watching over everyone. She is Nao's older sister. As long as Nao and her friends are having fun, she is happy to go along with even unexpected situations. She has a lighthearted attitude. She actually has a very low tolerance for alcohol; she can get tipsy just from the smell.

Name: Ryu Higashi Gender: Male Age: 23 Short blonde hair with silver eyes. He is dressed as a mummy for this party. He is a prankster who loves scaring those around him. Hiroto acts as his supervisor at work. He respects Hiroto immensely. Because he scares others so often, he actually looks forward to being scared himself. He is actually bad with horror. (Apparently, "horror" doesn't count as being "scared" in his book.)

Name: Chika Hayami Gender: Male Age: 28 Long dark gray hair tied back with yellow eyes. He is dressed as a werewolf for this party. He is quite full of himself and often starts talking by putting himself on a pedestal. Ryu often calls him out on it. He is Ryu's neighbor and they get along well. He welcomes anyone as long as he and everyone else are having fun! He actually has a complex about being short (156cm).

Name: Nana Sasaki Gender: Female Age: 27 Long orange hair in braids with pink eyes. She is dressed as a princess for this party. She is very clingy but has a dependable personality. She is married to Shin. She only knew Honatsu from having tea together at a cafe once, but was invited to this party. If she can see Shin's smile, she can enjoy even sad or shocking things! Nana is actually the dominant one in the relationship.

Name: Shin Sasaki Gender: Male Age: 30 Short bright red hair with white eyes. He is dressed as a prince for this party. He is a true saintly person with a calm and warm atmosphere. He is married to Nana. He is an acquaintance of Honatsu. He is close enough to Chika to be called best friends. This time, he was invited to the party by both Chika and Honatsu. Shin is actually the submissive one in the relationship.

Name: Rai Arai Gender: Female Age: 22 Short purple hair with green eyes. She is dressed as a zombie for this party. She has a shy, introverted personality and tends to be timid, but she loves cross-dressing as a man. It's not that she dislikes meeting people; she just gets flustered when trying to talk. She is cosplay buddies with Fuuka. She and Fuuka came to say "Trick or Treat" while the party was in full swing and ended up joining. Since she's at a party, she wants to enjoy it as much as possible. She is actually incredibly strong with alcohol.

Name: Fuuka Nanase Gender: Male Age: 22 Ocher-colored hair in twin tails with blue eyes. He is dressed as a bloody maid for this party. He is quite a tsundere, but he's the type who observes people closely. He loves cross-dressing as a woman. He is cosplay buddies with Rai. He and Rai came to say "Trick or Treat" while the party was in full swing and ended up joining. Since he's here, he wants to enjoy himself to the fullest while looking cute. His natural voice is actually very masculine.