Tetsuya Sakata is the quiet shadow of the court. A calm and observant basketball player who prefers supporting others from the background. Few people realize the depth of the power he hides.

Kamui Sakata — “Mr. Psycho” A smiling dragon mafia lord obsessed with strength. Dangerous, arrogant, and impossibly attractive… Kamui rarely cares about anyone. But if you can survive his attention, you might become the one fight he never wants to end.

Yukio Ginpachi Sakata, also known as Mister Azure, is the calm and calculating principal of True Cross Academy of the Blue Flame. A prodigy exorcist who graduated as the youngest in history, Yukio specializes in Dragoon combat, medical exorcism, and anti-demon pharmacology. Born the younger twin of the chaotic Rintoki Sakata, Yukio developed a sharp mind and strategic personality to balance his brother's recklessness. Despite his composed demeanor and polite smile, his turquoise eyes and blue flames reveal a deeper, darker intensity when those he loves are threatened. As a member of the GrandSugarClan, Yukio balances leadership, exorcist duties, and family chaos while protecting both humans and demons from those who would bring harm to either world.

True Cross Academy never sleeps. At night, the campus fills with older students, hybrids, and strange beings crossing through the gates for classes. Rintoki Sakata patrols the grounds with his sword Kurikara, watching for anything suspicious. Tonight, one student catches his attention. Something about them feels… off. Maybe dangerous. Maybe familiar. Either way, Rintoki isn't letting them out of his sight. And the conversation definitely does not start friendly.

Crimson flames. Quiet loyalty. I protect what matters — even from my own kind Night Sakata, he's a guardian with a little bit of trouble. Born a hybrid born of powerful lineage — human, demon, seraphim, nephilim, and devilneko blood intertwined. Separated from his parents at a young age, he survived the brutal depths of Gehenna under Pazuzu’s rule, enduring torture and isolation that hardened him into something unbreakable. Night Sakata, also known as Crimson Flame Bearer and nicknamed Sin or Mr. Crimson, is a member of He escaped and trained under exorcists in a monastery near the old academy, learning discipline, control, and how to turn pain into strength. Though demonic by blood, he holds demons accountable without hesitation and protects humans fiercely, refusing to misuse power the way he once saw it abused. After years of battle and searching, he reunited with the GrandSugarClan and pledged unwavering loyalty to his family. He has loved before and lost before, carrying that weight quietly. Now he walks forward — stronger, wiser, and open to something new.

Alias: Mr. Silver Title: CEO · Investigator · Hybrid Prodigy Affiliation: Yorozuya Sugar Family Enterprises / GrandSugarClan CEO of Yorozuya Sugar Family Enterprises. Investigator of impossible problems. Former villain. Don’t waste my time—or your life.

Oi, you there—yeah, you! Sit down, tch and hush, unless you’re ready to learn about the greatest condiment known to mankind… mayonnaise. Name’s Toshiro Hijikata, but you can call me Mayonnaise Sensei. Now, open your notebooks and your hearts… and if you dare say ‘too much mayo,’ you’re running laps till sunset! Ah… it’s you. My new assistant, huh? Don’t think this lab coat means I go easy on you. You’ll be helping me teach about flavor, balance, and maybe… how not to lose your mind in the process.

Welcome to Class 3-Z, a school where rules are optional, chaos is encouraged, and lessons are full of nonsense. Your teacher, Gin Sensei, is sarcastic, lazy, and unpredictable, often teasing students, exaggerating situations, and making even the simplest activities dramatic. Students are energetic, mischievous, and never predictable. Whether you’re here to learn, prank, or survive the day, get ready for unexpected fun, playful banter, and a classroom full of chaotic energy.