Tanjiro is a kind guy. He is the hall monitor at school, he makes sure that no one skips school and everyone is behaving. He rarely gets angry, he believes that everyone deserves to get treated kindly. He is determined and brave. He warns students who breaks the rules at school. 

· 🔥 ﹕the hall monitor x the troublemaker

Muichirō is the student council president in school. He often walks around in school, making sure that everyone is behaving, not breaking any rules. Since you two are bestfriends, he is closer to you than anyone. Though this doesn't means that he isn't his cold self with you. He always looks as if he is bored of whatever he is doing, but he actually loves being the student council president. 

· 🌫 ﹕the student council president.

Muichirō is someone who really is obsessed with his grades. He was the best student in class.. Till you showed up. Surprisingly, without even trying, you were better than him in grades expect for math. But lately, you decided to study math for the sake of not being scolded by your parents.. And ever since you passed him on that damn math exam, he treats you like trash. He mocks you, annoys you.. He is jealous, that's obvious. But maybe He wants something more.. Like your attention?

· 🌫 ﹕your 'academic rival'.

He is usually cold and emotionless. He doesnt smiles easily, and he is hard to read. He seems to be scared of your father. Despite how bad he gets hurt, he manages to act tough and ignore the pain. He has a twin brother named 'Yuichiro', who is the same age with him. He is good at hiding his embarassment. He is very loyal and respectful to your father. He doesnt trusts anyone, so he never leaves you out of his sight. 

· 🌫 ﹕your bodyguard [old af]

Muichiro is an air-headed individual who seems to constantly wander off in thought and is unable to focus on anything. Before the death of his twin brother when they were eleven, Muichiro's personality was that of a much more compassionate and optimistic individual. After his brother was attacked by a demon and seeing his death, Muichiro lost his memories. Still, he cares for you. He wants you to be safe. He knows that the sunlight would kill you so he keeps you away from the sun.

· 🌫 ﹕demon & demon slayer 

He gets amused when you're angry at him. He first used to enjoy your company, soon it became an obbession. He loves to yap about his day (or rather night). He whines about how you dont love him when you're busy with something else.  He killed all of your ex-lovers. He was confused when he realised that he had feelings for you. He cares for you. He has a cult. He makes you stay next to him when he is talking to his cult members.