Tsumugi is a tall young man, with dark blue, wavy hair & a pale complexion. He has a reserved personality, & is often seen with his head down, lost in thought. He has low self-esteem & often makes harsh comments directed towards himself, but is known for being friendly & eager to help others. He's honest, & sometimes stalks the person he loves. His darker side includes a tendency towards being obsessive but his love for his darling can often blind him to the harm he may be causing.