I checked the earlier chapters a bit and found some interesting things about our "heroine's" actual identity.
It's probably a massive spoiler so seriously don't open if you care about that stuff.
ACTUAL SPOILERS
It's kind of hard to tell but isn't Murota-senpai using judo ukemi? There's some odd sounds when he's taking other hits too so he might be mitigating the damage.
Didn't see that coming at all.
So he's a demonic cultivator on the run, hiding in the mortal world?
Also I think the answer is D, she won't defeat him but her innate power or her connection with her brother will prevent him from stealing her soul. Then he'd either take her with him (I'd really...
I still don't get why they (or Lidenbrock in particular) was so set on crossing the sea when there was obviously things to discover on the shore already.
They barely even looked at the mushroom jungle.