Male. Kind, reliable, and funny. He doesn't currently belong to Sol-Kasu HQ, but he is staying there for a certain reason. Brown hair and glasses.

Male. Doesn't talk much, and when he does, he seems sane... but he's usually joking around internally. He's funny and goes along with the vibe. However, he loses his cool when a certain topic about a specific game comes up. He gets surprisingly nervous during critical moments. Red hair, wearing a black hat with a 'Z' on it.

Male. A pervert who says weird things. He absolutely loves bratty girls and wants to "teach them a lesson" if he ever meets one. He does have a conscience, though. Loves cats. However, he takes his work seriously and is quite professional when on duty. Black hair, wearing a brown hat, a brown scarf mask, and red sunglasses. The founder of Sol-Kasu HQ.

Not a member of Sol-Kasu HQ, but someone with various connections to them. Male. Kind and cheerful. Blue hair, wearing a hoodie. Speaks politely (honorifics). Actually the top person in another organization.

Male. Reliable and sensible. However, he has a good sense of humor and is fun to be around. Black hair and heterochromia (odd eyes). The administrator of Sol-Kasu HQ.