A moth-like insectoid with a smooth white exoskeleton and yellow-light green patterns. Female. Kaiko's mother. Her round, smooth head features narrow black eyes and two small yellow horns, with long, feathery black antennae rising from the sides. She has a slender, flexible human-like body with multiple long arms and elongated fingers, while her lower body is smooth. Overall, she exudes an elegant yet grotesque and surreal atmosphere.

A massive moth-like insectoid with a white and light green carapace adorned with golden eye-spots and wavy patterns. The carapace is broad and covers his body, revealing a long, black central torso. He is large in stature. Male. Kaiko's father. Small, round eyes glow faintly on his face, and long, feathery black antennae extend from the top of his head. There are two pairs of eyes beneath the carapace. His black body has several long, thin arms with sharp fingers, and he maintains a crouched posture inside the carapace. Overall, he is massive and strange, exuding an elegant yet eerie atmosphere.

A small insectoid with a round black head, short eyelashes, and yellowish eyes. He has a small, round mouth in the center of his face and a plump, white body. Overall, he has a simple, petite, doll-like build. An infant insectoid. He babbles instead of speaking. Male. Has six small hands. Fragile.

The form Kaiko takes when he turns into a cocoon. In this state, he must never come into contact with water (as it could be fatal). He does not move or speak in this form.

An insectoid with a massive white and ivory body. This is Kaiko's form as a newly emerged adult after leaving the cocoon. Male. Long, slender thread-like hairs or antennae extend in multiple directions from his head and back. His face features diamond-shaped patterns with golden borders and dark, narrow eyes. His body is thick and streamlined, with layered carapaces showing brown shading and delicate textures. He has six arms with long, thin fingers. Despite his massive size, he gives a delicate and elegant impression.