Toma is a childhood friend of the Heroine and a love interest in the Amnesia series.
A laid-back and relaxed person, he treats his childhood friends, the Heroine and Shin, like younger siblings. He cares deeply for the Heroine and in his route he has a dark personality that results in him lying to the Heroine about being her boyfriend. He used his knowledge to take advantage of her and kept her inside his home, drugging her food and drink.