Review Detail of AndiAng in Eternal Saṃsāra: The Wanderer of Worlds

I had read for the first 20 chap the story is good good backgrounds and starting point and good depiction of other characters except MC the character development you want for MC do not feed in MC Background for excample he have been reincarnated for several time that's mean he is old the older you are the wiser you became but I do not see any of it you have to consider the character development before your story timeline started the feeling is feel when I see MC is any other teenage boy that have knowledge beyond his age that's all i do not feel his vast amount of experience of living for milinia