... That damned mother.
Is there nothing she won't butt in on?
She can't let them vomit without it becoming a competition.
She can't even let them procreate without it becoming a competition.
She has spent the entire manga trying to steal Mu-kun's attention from her own daughter, his wife, just because her own husband wasn't home yet.
She even tries to steal the spotlight from her dying husband on his hospital bed too.
Every freaking chapter of this entire manga has involved that insufferable blob forcing her way into the middle of everything.
Someone get Kenshiro to use the Hokuto Juha Zan on her already... Or at least transport her alone to Hokkaido without any money and leave her to get home on foot or something so everyone can have some time without her.