Dunno why people act surprised by all the side characters appearing, they were basically pretty much along the story constantly...
Dark elf Sariela was actually pretty powerful it seems, those darn long ears, never relax around them.
Irmgard got saved by her half human half demon, was wondering when he would appear, now he is even using magic just as her even, what a chad.
Corrupted Leo was strong enough to overpower Melvie, Fleur and Helga in her timeline/dimension so no wonder they can't handle her as seen her killing them in previous chapter.
Thanks for the scanlation!