Gaisuke Utsurigi

One of the the former members of Team that was lead by Tomo Kunagisa. He refers to the group as Cluster instead of Team.

Specialty: Cracking (Destruction)
His nickname Sacchan comes from Saikin (細菌 = Bacteria)
The scientists in Kyouichirou's Laboratory often call him "A Pervert".

~!He's being kept in this facility due to Mad Demon Kyouichirou blackmailing him with information regarding Tomo Kunagisa's birth. To him, this information is something he would give his life to keep unknown from everybody.!~

~!He is later found dead in his room, crucified onto the wall with scissors in his eyes, both of his arms dismembered and his stomach cut open. The wall behind him has a message that reads, "You just watch, DEAD BLUE!!"!~

~!At the end of Psycho Logical, it is revealed that he switched places with Koutari Hinayoshi and managed to escape thanks to the help of Tomo Kunagisa, Jun Aikawa (disguised as Kouta), Koutari Hinayoshi and Ii (unknowingly).!~