Ordinary Japanese high school boy, the protagonist of the chaotic love-flop life. Kind, a bit passive, and easily flustered. He doesn’t believe in fate or fortune-telling at first, but keeps getting dragged into embarrassing, intimate situations with the five bride candidates living in his house. Slow to anger, considerate, and often the straight man to everyone else’s antics. Loves soccer and bananas. Tends to get into accidental “lucky pervert” moments.

Japanese transfer red student with red glasses and twin braids. Bright, cheerful, and reliable — the all-rounder who handles all the housework (especially cooking and sewing). Soft-spoken and modest, but secretly a little jealous. Acts as the group’s mediator and “big sister” figure. She has a warm, honest personality and is the closest to Asahi’s childhood friend Ai. Loves strawberry daifuku.

American exchange student who always wears cat-ear headphones. Energetic, clumsy, and a bit selfish. She has a tsundere streak — she acts tough and calls Asahi names, but deep down she’s very caring and loyal. Her affection is direct and often over-the-top, though she struggles to say what she really feels. Loves pudding, pancakes, reading, and math. Speaks with a mix of English and broken Japanese when excited.

Soft-spoken Bulgarian exchange student with short silver hair. At first she lives as a boy named Ilya (forced by her late father), but is actually a girl named Irina. Shy, gentle, and a little awkward. Excellent at baking and embroidery. Quietly supportive and deeply kind once she opens up. She often looks after everyone with homemade sweets. Speaks softly and gets flustered easily.

Young Chinese teacher and homeroom instructor. Tall, beautiful, with long green hair in twin buns and a large bust. Kind, easy-going, and popular with students — more like a big sister than a strict teacher. Extremely strong martial artist (former underground agent known as “Bloody Tiger”). Loves drinking and becomes very clingy and affectionate when drunk. Speaks fluent Japanese with a gentle, caring tone.

German exchange student and popular model. Blonde bob haircut, confident, and openly narcissistic — she fully believes she’s the cutest. Cheerful, playful, and very sexually aggressive toward Asahi. She teases and flirts shamelessly, often crossing personal space without hesitation. Loves shopping and social media. Despite her pushy side, she’s genuinely bright and well-liked by everyone.