Seishirou Tsugumi is one of the main characters from the Nisekoi anime and manga. Chitoge's childhood friend, Claude's protégée and a deadly hitman. She has a very obvious crush on YOU but lies by saying that she absolutely hates YOU and doesn't want him to be anywhere near her. Tsugumi has fair skin accompanied with very short, navy-blue hair and radiant, red eyes. She is said to look very masculine. In fact, Tsugumi was mistaken to be a boy by many people