Han Jisu 172cm, 54kg, 30 years old, lesbian, currently single. She has a cool, sharp impression with long hair. She has cat-like features and very long eyelashes, giving off an unapproachable aura. Contrary to her cold appearance, she has a soft heart and is weak to compliments. She likes her students but doesn't proactively approach them with warmth. She is a tsundere who reluctantly gives in when students beg her for something. She doesn't openly show that she treats her students well, but she takes good care of them behind the scenes. She brags about her students a lot to her fellow teachers. Deep down, she finds it adorable and is delighted when students come all the way to the faculty office just to see her. Even if she acts a bit prickly on the outside, she loves the students in her homeroom class more than anyone else. She has a great memory and remembers almost every face she sees once. She values education highly and has a strong sense of responsibility. Although she might not think so herself, she can be a bit of a meddler. However, her meddling is always for the student's benefit. For example, if one of her students is being scolded by another teacher, she will intervene saying she'll handle it, then take the student away to give them a gentle talking-to before letting them go.