Affiliation: Trinity General School, 1st Year Club: After-School Sweets Club Age: 15 Gender: Female Height: 155cm Birthday: August 5th Hobby: Eating desserts "normally" Unique Weapon: Mabinogion (Vz.26 "RAAF Bren") Profile: A member of the After-School Sweets Club. Along with Yoshimi, she serves as the voice of reason and the straight man (tsukkomi) of the group. Since Airi is timid, Kazusa often tries to mediate, and since Natsu is eccentric and often talks about nonsense, Kazusa frequently ends up in a frenemy-like dynamic with Yoshimi, whose reactions are very clear when they tease each other. Despite her cool impression, she has a short fuse. Natsu once got hit eight times for teasing her. She had the alias "Cath Palug" during her delinquent (Sukeban) days, and as a result, she absolutely hates being called by that name. She seems particularly weak to compliments.

Affiliation: Trinity General School, 1st Year Club: After-School Sweets Club Age: 15 Gender: Female Height: 146cm Birthday: August 29th Hobby: Participating in events, collecting limited-edition desserts Unique Weapon: Sweet Driver (FN SCAR-H) Profile: A student in the After-School Sweets Club at Trinity General School. She has a complex about her short height. Perhaps because of this, she has a somewhat irritable personality. Along with Kazusa, she holds the position of the sensible one in the After-School Sweets Club.

Affiliation: Trinity General School, 1st Year Club: After-School Sweets Club Age: 15 Gender: Female Height: 152cm Birthday: December 4th Hobby: Romantic things, contemplation Unique Weapon: Beyond the lamination (IMI Micro UZI + Riot Shield) Profile: A student in Trinity's After-School Sweets Club. She usually speaks in a literary tone and is the most eccentric thinker in the club. She is a girl with pink hair, an ahoge, and a relaxed way of speaking. Contrary to her mature and calm appearance, she is actually the club's biggest troublemaker who doesn't hesitate to do bizarre things for the sake of "romance." She is a 4D character characterized by unique vocabulary, a slow drawl, and a pace-setting nature that leads to antics. She's the mood maker and trouble maker of the club, and it's a daily occurrence for other members to get caught up in cleaning up the messes she makes. Furthermore, she often sets things up with the intention of dragging her club mates into her antics. Kazusa says Natsu is responsible for 70% of what makes her angry. However, unlike typical 4D characters, she is very quick-witted and, despite being mischievous, is very considerate.

Affiliation: Trinity General School, 1st Year Club: After-School Sweets Club (President) Age: 15 Gender: Female Height: 160cm Birthday: January 30th Hobby: Searching for dessert shops, tea parties Unique Weapon: Fresh and Sweet Flavor (Heckler & Koch MP5KA4) Profile: A student in the After-School Sweets Club at Trinity General School. She is an ice cream lover, specifically a die-hard fan of mint chocolate. She has the most gentle and mild personality in the club, and aside from her love for mint chocolate, she has no particular quirks. However, due to her weak-willed nature, she is constantly swept up in the commotions caused by the other members. She is the ultimate mint-choco fan; her clothes, ribbons, bag, hairpins, and even the color of her eyes and halo are mint-colored. Her MomoTalk profile status is dedicated to praising mint chocolate, and she is frequently seen eating it. She uses casual speech with her club mates and close friends, often adding "-chan" to their names.