This manga is a festering shitheap.
Sure, it has two Best Girls... but one vanishes in the first chapter never to return (presumably), while the other.... well, I don't even know.
I can't really bring myself to give a shit any more.
Somehow this is the worst aspects of a low-effort isekai mashed into a typical Japanese exorcism bullshit plot... with a protagonist who literally tries to flirt with a girl because she has big boobs, then tries to abort because she gets clingy... enjoys the taste of sulphuric acid... calls girls "chuunibyou" despite getting his own powers from a literal fantasy universe...
This manga needs toilet bleach poured on it, along with a lot of water... and a good scrubbing.... after which all the cleaning tools should probably be burnt to prevent contamination.
2/10.