I dropped it at Chapter 27 so here's a summary of this novel in 27 chapters.
So basically the mc returned from the future (100 years) where humanity almost or went extinct. He is raised in an organisation that deals in assassination. Oh, did I forgot that something called Heavenly-winged cicada (whatever) went with him back in time? No? Now you know.
It raise his perception - also, he is rediculous handsome. Oh, you don't care? neither do I but it's mentioned a lot of times in this novel. So I thought might aswell tell you.
Uhmm... There are items called miracle items that basically is fantasy level items with amazing effects and consequences like the (small spoiler and also the fact I dropped this novel) heavenly (something) dragon eye. It give him the ability of sight and other things that I don't remember.
So the consequences are the bloodline heritage and that basically makes him constantly having the urge to mate and spread his genes. But here's the catch. he travels with his good friend (female) who obediently follows his orders and trust him completely.
So yes, he didn't r*pe her anything like that, just that he chose other women to have s*x with so I don't know, didn't like that. It's pretty obvious that his friend will become the FL so when he chose someone else to have s*x with, it didn't really sit well with me because sometimes (mostly/frequently) that means it will become a harem. And I hate harems to the core.
And yeah, the novel is cool unless you're like me who hate what I just mentioned.
Translation - 5* (you can read smoothly)
SoU - 5* (trial read, always 5 stars)
Story Development - 1* (I just hate his choice, it's original 4 star)
Character Design - 3* (Just because the mc has an unique side effect it makes a little bit better but like anything else he is extremely handsome (cliche) and his friend is extremely cold like all the other extreme beauties)
World background - 4* (I don't know with 40 chapters but I guess it's quite explained, I'll just give it a 4 star)