Well it was quite a mess.
All the siscon stuff were pulled off in last volume turning it to random asspull Yurifest character without any basic developments.
Not much explained either.
Aside from good hero recreation from the other Heroes and Monster fiction, this Manga fail to deliver the build up and the summary it trying to create with a flat Main Characters.
Another problem I need to address here is that all the female black haired characters mainly Yuri,Miyuki and Hikari is quite hard to differentiate if they're not side by side or shown their Boobs size.
Overall it's 6/10.