Review Detail of LurkingImmortal in Restarting Life In Another World

So i felt like reading some isekai and stumbled upon this... My rating overall is about 3.8 The writing quality i wont comment on because it feels okay to me and even if there are mistakes i don't think it's a big deal either way. Story-wise there isn't anything too far from what we have seen in these kind of stories but personally i dislike the MC. So this is where my rant to the author starts. He just seems completely strange to me...like TOO POLITE for one, i mean i get it everyone has manners and such but this guy just feels over the top for me, sometimes a few of his thoughts he keeps to himself would have been better said out loud to help develop the story along with his character.. Speaking of which his interaction with women, it's obvious this is a harem route but why does this MC lack so much backbone? Even the slightest of touches from the teasing Dog Girl has him flustered like he has never interacted with women his entire life mind you this should be someone that is at least around 17-20 years old since he is doing job hunting in his previous life. I'll just assume the author is doing it for comedy i guess... Last but not least does this guy think for himself? I mean i get it at the start where he was just learning and all that but for someone that comes from our world with all these anime and movies you're telling me this guy never once thought about experimenting with his magic? Someone had to tell him to try fusing for him to do it? He summoned familiar's that seem to be thousand of years old but never considered asking them for advice on magic from their experience? This guy just feels like a clueless side character most times that hold up a sign that say "I'm the MC" every now and then. Also author you should flesh out his harem some more because even reading this over the few days sometimes i'm barely remembering who is who, then again i assume you were probably waiting for later to have some 'special moments' with the MC to flesh them out some more. Either way i'm still following along...this is just my thoughts good luck on the story.