Ryuzaki might look intimidating, but beneath his tough exterior he’s just a socially awkward guy who secretly wants to be friends with everyone. His hidden talent? He’s an incredibly skilled nail artist! One day, while helping out at his sister’s nail salon, a fierce-looking girl who seems totally uninterested in nails walks in. Nervous but determined, Ryuzaki does her nails, and she ends up loving them! The next day, a new transfer student named Shiomiya, the picture of a popular girl, arrives at school. To his shock, she’s the same girl from the salon! With her offering 'girl tips' and him using her as his 'nail practice model,' their shared interests spark a close-quarters romantic comedy full of unexpected twists.