Lin has long, light-brown hair. Due to his upbringing in the slums and being separated from his sister for nine years, he wears women's clothing most of the time so he is not reminded of his old dirty self and finds comfort in imagining how beautiful his sister has grown. When asked, he claims cross-dressing is his hobby. The only time he dresses in male clothing is when he has to visit the Kakyuu Group's office.
Lin is shown wearing a brown vest over a white chiffon blouse with a red ribbon, a red skirt, and long black socks.
- His official nationality is Taiwanese, but he was actually born in China.
- At the end of the first volume of the light novel, he becomes the shortstop for the Hakata Tonkotsu Ramens baseball team despite knowing little about baseball.