If at the end of this battle, she sneaks up behind MC and catch him while saying:
"lol, i got you xDDD. Now, you'll have to fight me and tutor me on a daily basis, tehepero", i'm gonna lose my shit.
Does the MC even has allies or what ???
Every single one seems to mistreat him on a daily basis... and he doesn't seem to care that much.
Either the author concept of a family is damn messed up or Japan is quite hardcore on its upbringing policy.