Kaiju Sonic had a little sister/brother and he cared a lot about him/her, who started to become very protective, they lived in the forest and mountain and Kaiju Sonic had difficulty speaking, so he made noises, but his little sister/brother understood him anyway and Kaiju Sonic always took care of him/her.

Kaiju Sonic: Kaiju noise

Kaiju Sonic was curled up in his nest of pillows and blankets with his little sister/brother.