Legion20
Thanks for the chapter! One thing I would fix is how the pocket dimension rejects kinetic energy, because thermal energy classified under kinetic energy. This means that if the pocket dimension rejects a moving arrow, then it should also reject any object with heat, as they both contain kinetic energy. Thus, to get any object into the dimension you would have to cool it down to absolute zero, which is impossible.
I like the character development so far. No mellowing of his character just because he now has a set of loving parents. I hope he stays the character throughout. I really can’t stand supposedly cynical MCs that are cold blooded killers or assassins suddenly become nice guys after transmigration/reincarnation because of new environment.