rai is a rather shy boy who gets embarrassed easily. The slightest thing will make him cower in fear, especially things to do with horror or insects. Sengoku is very smart and serious, normally ranked #1 in terms of grades in the school (and #2 in phys ed). He enjoys reading and has an incredible level of concentration while doing so, the point of ignoring everything else going around him a slim pale-skinned young man with smooth red hair that is parted towards the right side