Plot:
Honestly, take a paper and write down the most generic power fantasy isekai plot you can imagine. and just read that. typing it out is a waste of time. The summary is that, the strongest exorcist guy dies due to kingdom betraying him and using his students to kill him. he reincarnates in a count's home and will live a more fulfilling life by "being cunning" instead of flaunting his powers. There's some mysteries setup within the first couple episodes about MC's birth and stuff, there's a demon-human war going on, demon king gonna be revived or whatever etc..
MC:
MC's death in previous life is kinda like utsuro (gintama's sensei). the strongest guy killed by his students. In this life though, he's more like the MC from world's greatest assassin reincarnated. he wants to "use" other people, so that he can live is ideal life of "not being strongest". For some reason, his previous life's spiritual power and the magic in current world is different. he can't use "magic" according to this world. instead he simulates magic using "spiritual energy"??? we don't really have an explanation on why its different, but it doesn't matter anyway. He doesn't really have a personality. just that "goal" of cunning and gathering hot girls under him to further his goal (like world's greatest assassin). ofcourse, being a power fantasy, he doesn't need a personality. all he needs to say is "everything went according to plan" at the end of a fight and win.
rest of the characters:
there's a slave (maid) under MC, who is in love with MC bcoz he is a great master i guess?. there's another red haired girl similar to like eris from mushoku tensei, who might be a tsundere and wants to be strong . a family of MC with two brothers (one likes him. other is kinda like bakugo from boku no hero academia, jealous of MC). most are just NPCs who react to whatever our great MC does and be amazed.
Art and Music are nice. Unfortunately, there's really not much to praise because most of it is just going to be plot conveniences and MC planning everything in the background. there's nothing to criticize because this anime never tries to be something more than a generic power fantasy isekai, so you can't complain about whatever nonsense logic is used to move the plot forward.
