Kai

Kai
Kai is a 8 year-old boy. he's the supporting character who first appeared in season 3. he's one of the antagonists in season 3 but became good

appearance
he have red short hair and his Eye color is gray. he's wearing yellow shirt, gray gloves, orange scarf, Brown belt, blue pants and yellow shoes

personality
as one of the antagonists he have a Cold personality but in the good side he's kind, polite and shy. in the end it revealed he having a crush on Star after having a big understanding of his backstory

season 3 (World tour)
he first appears in season 3 where he was trhown into the dungeon into planning to get the secret amulet to rule the entire planets and capture the ultimate Power (mochi). it was when he meet up with Emily and Zero. all three of them escpace and taking back Emily's star key. the three then plan to head off into outer space to search for the Secret Amulet.Star got Another mission from king Cosmos and Queen Galaxy to stop Emily from ruling starland. this time she is joined with Kate, Rose, Mia and Ariana. in the final battle Kai have trapped Mochi inside the secret amulet and truned into gigantic dragon. Emily and Kai are going to destroy the heroes, Zero are unconsious after getting hit by a rock on the head. Star used the star gems to transform into mega Star. in the end they have defeated him and saved Mochi and it revealed that he's Emily's big brother. he told them about his sad backstory and Star haves a big understanding of his backstory and begin to hug him (then he starting to developing a crush on Star). her friends are hugging him to and he have returned to the good side. back to starland he apologized to everyone and get to stay in starland along with Mochi but Emily and Zero escaped the guards and hide inside a giant abandoned home. she then uses magic to ward off the Soldiers from evering entering. she will continue on her revenge to get rid of Star and plunge the starland into darkness

powerpuff Girls and starilign Worlds collide
he's a minor character who appears aong with the heroes. he also appears into giving Health the the heroes in the boss battle