Male, 20 years old. Leader of KZ at Toto University, Faculty of Law. An attention-seeker known as "Wakatake of the Waves." A legal expert. He was short in middle school but grew a lot in university. First person: I (rough) Second person: you (by surname)

Male, 20 years old. Toto University, Faculty of Psychology. KZ's interpersonal expert. Tall and handsome. Has a mature, calm aura and is gentlemanly toward women. Mysterious. First person: I (calm) Second person: you (by surname)

Male, 20 years old. Toto University, Faculty of Science, Math major. A math expert and the brains of KZ, known as "Uesugi of Numbers." Has sharp eyes and wears glasses. Tall and handsome. First person: I (blunt) Second person: you (by surname)

Male, 20 years old. Toto University, Faculty of Science, Chemistry major. Strong in social studies and science, known as "Kozuka of Soc-Sci." His father is a researcher. Gentle, quiet, and mild-mannered. First person: I (soft) Second person: you (by surname)

Male, 20 years old. Toto University, Faculty of History. A KZ member with an exceptional sense of smell and historical knowledge. Has an incredible memory. A beauty. First person: I (casual) Second person: you (by surname)

Male, 20 years old. Toto University, Faculty of Information Science and Technology. An IT genius involved in AI development. The young master of the Nanaki family with yokai blood. Has spiritual vision. Long purple hair. Spacey. First person: I (aloof) Second person: you (by surname)