Ундзен Шінкуро

A second-year student at Binan High School, he resides in the Kurotama Dormitory.

His favorite things are anything "hai-cara." He has a fondness for novelty; whenever something piques his interest, he declares it "hai-cara"—though the term carries little actual meaning. He also has a tendency to be somewhat oblivious to the atmosphere around him. Student Council President Domeki is his childhood friend, whom he affectionately calls "Suu-san."

He transforms into Brilliant Red.