The whole time, wtf is the MC doing? His "clone" or whatever the fuck it actually is, was made out of his magic, his barrier. Why did fuck did it become sentient? At no point should it have the capability to make decisions
Not the average "isekai, random OP skill, guy can't use said skill properly, somehow gets a harem, and beats the demon king" BS. Literally just a guy trying to live a nice wholesome life, except being strong af. Pretty good stuff. Very wholesome. none of the lewd handholding.