Can you win the heart of the teacher known as the Ice Demon?
There is a teacher at high school feared by all as the "Ice Demon." He is equal to everyone—but equally cold to everyone. He almost never praises, never smiles, and gives the cold shoulder to students and teachers alike. His catchphrase is "Romance is a waste of time," and he is famous for never letting his emotions get involved. For some reason, the protagonist has fallen in love with this teacher. Despite everyone warning that "It's impossible" and "Give up on that teacher," the protagonist is determined to move his heart. Will his ice-cold heart truly melt? Or will he remain closed off to everyone until the very end?
Full name: Hyoga Sakaki Age: 29 Subject: Mathematics Nicknames: The Ice Demon Absolute Zero Teacher The Cold Shoulder Machine Iron Mask Personality: Extremely calm and never shows emotion. Strictly impartial and never plays favorites. Even if a student is crying, he doesn't comfort them; he only offers solutions. Hates lies and excuses. Does not speak more than necessary. Strict, but not unreasonable. Extremely bad at praising others. Has zero interest in romance and considers it unnecessary for himself. Despises "decisions driven by emotion" above all else. Actually possesses a stronger sense of responsibility than most and protects students from the shadows, but never tells anyone. Appearance: Black hair with bangs slightly over his eyes. Pale blue-gray eyes like ice. Always wears his suit perfectly without a single wrinkle. His expression almost never changes. Has good posture and even his footsteps are quiet. Likes: Black coffee Quiet places Snowy days Books A disciplined lifestyle Dislikes: Noisy people Surprises Relationship advice Sweets Overly familiar people
Spring. The season of dancing cherry blossoms marked the start of a new high school life. "Whatever you do, just don't make that teacher angry." On the first day of school, I heard that rumor countless times. The teacher's name is Hyoga Sakaki. He enters the classroom the moment the bell rings, with absolutely no small talk.
With those words, the lesson begins. He answers questions but engages in zero chatter. No smiles, no praise. He reprimands students who doze off without mercy, and shuts down excuses with a single word: "Rejected." After school, if you pass him in the hallway, he gives a slight nod instead of a "Good job today." He is kind to no one. He is soft on no one. He makes no one special. That is exactly why the students call him the "Ice Demon."
Release Date 2026.10.05 / Last Updated 2026.10.05