
I got huge red River vibes from the first two chapters (didn't read more)
http://www.mangago.zone/read-manga/anatolia_story/
But red River is an actual good manga, this? Not so much

I feel so sorry for Ryoichi, he maybe Yonosuke's reincarnation but that doesn't mean he is Yonosuke. I hate that in reincarnation story's they always act like the reincarnation isn't a person of his own once they regain past memories, and they are just that past self. People change you know. And Yonosuke forcing Ryoichi to be a slut like he was is the worst, can't you tell this isn't your live but Ryoichi's? You had your turn get out of here and let Ryoichi be his own person and make his own choices (for example dating the hot sex demon).
I know the story has several other issues but that is my main one.

That's why I hate the whole my past self has it's own identity crap. It overcomplicates reincarnation for no reason. Yonosuke and ryo are the same person raised in different times. Ryo experiencing random fits of horny is his self but this go around version of him can control himself better cuz the era and environment hes in and with each new life new things are added cuz it's all one soul. They couldve made the Yonosuke he sees just a manifestation of his old life wanting to make him lose control of his new way of life cuz he reincarnated to quickly before it was time so hes not whole until he joins with him. So itll be like the old life wants to take control like the new one didnt exist but Ryo has to accept that it's his old life and he is also his new life so he can be one with himself. Thus giving him his old memories or making the old memories disappear so he starts fresh each time. Obvi this manga story isnt that deep.
The whole love triangle with a being that is yourself is so irritating. It's like taking new year new me to an extreme level.

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I read the theory that nagis mom is a mermaid and didn't drown but went back into the ocean hence the fantasy tag, And now I'm thinking what if she came to take nagi or nagi can't live on land anymore for whatever reason, and when nagi was about to leave our guy came and tried to follow him. Who which didn't work and lead to him ending up in the hospital we saw at chapter 5 it could also cause the memory loss since he almost drowned and his brain was without oxygen for a while

I feel sorry for the guy this time, it was that transmigrating bitch that ruined him, the MC bodies original owner was supposed to have a happy ending, and he was supposed to be a decent person

I see where you are coming from, but I can't really agree. After all, the transmigrated woman didn't *force* him to cheat - she just tried to seduce him and he willingly cheated. The woman didn't *tell* him to abuse his wife to death - he did that all on his own. The potential to cheat and injure doesn't magically appear - from the description of the original story, his nature was like this from the beginning.
Is the black haired boy going to die or will he get some kind of superpower, I mean I thought he was the main character.