Suoh is a martial arts expert, with a 3rd dan blackbelt in Karate, Judo, Aikido, and Kendo (he would have gone higher, but he ran out of competition). He's also good in kyūdō (Japanese archery). He is also the descendant of a Japanese ninja clan, and has sworn to protect Nokoru through anything. Suoh first met Nokoru three years prior (him being in 2nd grade) to the story but at first he was avoiding Imonoyama.