Again, unless Admiral can heal from docks, as well, this fucker's gonna die, and the pointlessness of hiding him in the first place is as obvious as ever...

Why is that the first conclusion you jump to Kuma?

Head wounds like that are usually not that threatening, they just bleed a lot verse the appearant surface area. This is why professional wrestlers use to have a tiny razor to cut open their forehead so they'd seem to be bleeding a lot from an impact of one sort or another.

They don't to this anymore due to various diseases.

Random_Fanguy said:

Why is that the first conclusion you jump to Kuma?

Because:
1. She's a shipper on deck for Kiso and Admiral, so it's on her mind.

2. All she can see (presuming she's not seeing the blood) is that she's hiding Admiral in the bath with her, holding Admiral in her lap.

3. Of course she would, coming up with ways to push Kiso into getting naked with the Admiral is basically her only role in this story!

Kuma saw it all-kuma!

Why would one cover herself with period blood tho, Kuma?

I don't think Kuma's sekihan thought has anything to do with menstruation. While that is a tradition, it's also a general celebration food, for things like e.g. weddings and engagements. Kuma wants to celebrate Kiso's relationship with the admiral having moved forward.