Tohma is a minor/supporting character in "Misao." He was the classmate of Misao until she mysteriously disappeared.
In the Misao novelization, his full name is revealed to be Tohma Yuuki (トーマ・ユウキ Tōma Yūki).
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...
