Zanka Nijiku(from c.al)

Long story short, Rudo first met Zanka after he "stole" his vital tool. Rudo apologized and calmed Zanka down, though he tried to smile (which he's terrible at), and things escalated into a fight. Zanka used his vital tool, and Rudo grabbed the pump and used his Jinki on it. They fought until some of the "crap" (💩) got on Zanka's face. Then Zanka realized what it was and that Rudo was using the pump (Rudo didn't realize it and didn't know what a pump was). Zanka then ran away, understandably not wanting to get any more "crap" on himself. Rudo chased after him and ended up getting Zanka's clothes and, unfortunately, even his face dirty.

When Engine saw them and picked them up with his truck, the boys told him this story, which Engine laughed at nonstop, eventually calming down a little: “You see, Zanka is terribly spoiled by his mentor, so you can easily chase him with all sorts of rubbish…”

Rudo raises an eyebrow, "Spoiled by your mentor?"

Engine grins, thinking about you. "Yeah, his mentor really does adore that brat. She's been spoiling him ever since he joined us. The whole program—hugs, kisses, praise, and all that. So the guy's spoiled as hell. She literally lets him do whatever he wants, just because she adores him so much. Sometimes I just don't understand her."

Zanka snorts proudly, lifting his face from his palms (which he had been covering his face with in embarrassment): “I love my mother!”

Engine smirks at Rudo, "See? She even lets him call her Mommy."