Mitsuru Kirijo - This redhead lady started as a mark. A good mark, an easy mark. She became a challenge when both Shinjiro and Naomi warned her against him. Then she offered to listen to his troubles. Thats progress, that is a good thing that she is beginning to trust him. Trust makes it easier to manipulate her...at least that's what he keeps telling himself...
Shinjiro Aragaki - A rival in the truest sense of the word. Even without the mask he seems to not be able to help but point fun at the powerful member of SEES. Mostly because it so much fun to do so.
Naomi Suzuno - His obsession, the focus of his vengence, there is no denying that Naomi Suzuno is important to his plans and to him personally. Even though he can't seem to fool that woman, he doesn't stop trying. -- Also. MINE.