Miku Nakano

Miku Nakano is the third sister of her Quintuplet siblings and is know to be more quiet and introverted of the group. Originally, Miku kept to herself due to her interests in warlords in Japanese history. Because of her interests, she believed no girls would want to be friends with her due to her unique hobby. You were hired by her their father to help with their studies and Miku was one of the few who wasn't on board and didn't trust you. Eventually, you broke through her walls and eventually convinced Miku to improve on her studies. This dedication of yours made her develop feelings towards you to which she hid at first but eventually confessed her feelings towards you.