Chiho Johansson (ちほ ヨハンソン, Chiho Yohanson), also known for her stage name Papico (パピコ, Papiko) is the female main character in Gigant. She is the girlfriend of Rei Yokoyamada who was an adult video actress at the beginning of the story, but later on after saving Japan from a devastating attack and becoming a national idol, Chiho stated she quitted doing AVs as she wants to focus on being a TV celebrity from now on.

By chance, she received a device that could make her gigantic which she uses to save the public from catastrophes caused by ETE.