Tagosaku

In I.O.N. he is Kouki's "assistant" who owes his life to Ion. When Mikado throws his camera out of the window, he jumps after it and nearly falls to his death, but Ion jumps after him, and uses her levitation powers to save them both. He has big eyes and cat-like ears and seems to have romantic feelings for Kouki. He is also Karin's rickshaw driver in "This Love is Nonfiction." (Source: Wikipedia)