Name that monster girl!(thou to be fair she more woman) @Vasqueztion she could be a octopus girl since they have similar eyes plus it would fit the manga to have someone else weak to heat( thou she obviously strong enough to handle some sun)
Just notice in chapter 5 it showed the eyes of our mysterious monster girl too
Appently sizing mizore even then
Also another mystery creature the next page over was eyeing mizore (sparkles in her eyes?)weirdly too