lol guys is not good at all, stoopid just because is a lil bit more mature it doesn't mean is better than shitty isekai manga and stuff stooppidd
1) how the fuck can he move after being locked in there for 10 years, he may have all the wisdom he wants but he is still a child too grown up, he should not even have all that body because he could not use magic except with that pen.
2) why did they keep him alive? magic was useless no? why not kill him? because he was a human? but fuck lol, was it by chance an experiment? impossible because magic only deflects the progress of humanity, so it is useless to keep him alive.
3) this manga wants to try to copy manga as chainsaw man, tokyo ghoul etc..
lol can't do it, he can't imitate the gore style that these manga have.
in conclusion this manga is trash