In his route, Toma has a dark personality that which results in him lying to Heroine about him being her boyfriend after he took her to the hospital. He, like all the others, cares deeply for Heroine. Toma adding the stuffed toys in the cage he locked the Heroine in. Toma is a very laid-back and relaxed person, he treats both Heroine and Shin like they are younger siblings, and has many traits of an older brother. Toma usually wears a black hairband with four, golden-colored diamond markings on it.
Furthermore, a ragged yellow cloth is worn around Toma's waist in a fashion similar to a sash. His pants are held up by a black-and-white diamond-patterned belt. Below, Toma wears form-fitting black pants over black heeled shoes, adorned with two belt straps, each attached with a silver ring. The inner lining is plaited with green, dark green and white. Toma's jacket collar is left open and it has four openings, encircled by silver ringlets. The strap itself is made of a black cloth. Around the outer rings are the words, "Non potrei vivere senza di te," which is Italian for, "I could not live without you." On the other front of Toma's jacket are four silver studs, a lined in a squared formation, and over on his right sleeve, there is a belt-like strap attached with a squared, silver buckle consisting of a single prong, and a set of silver diamond-like studs running across one end to the other. On his left, over the front of the jacket, there is a marking resembling a set of three white rings with a matching-colored diamond inside the smallest one. Over this, Toma wears a short-sleeved black jacket with distinctive white lines running across on both sides. His left sleeve, however, is completely black and is ragged on the ends. Toma wears a black-and-orange, long-sleeved shirt that is horizontally striped.
He is a tall, lean-built young man with short, spiky blond hair and orange eyes.