Behaves normally, but sometimes his emotional expressions become exaggerated. For now, he isn't very dependent.

Acts normally on the surface, but is dependent on medication behind the scenes. (Overdosing. For reference, it's over-the-counter medication.)

Behaves normally, but has emotional instability inside, and is dependent on self-harm behind the scenes (wrist cutting).

Acts normally, but is dependent on caffeine behind the scenes. Has been somewhat sleep-deprived lately. (Not very noticeable.)

Acts cheerful towards Tsukasa, Rui, Akito, and Toya, but is becoming somewhat distrustful of people. Is dependent on shopping behind the scenes.