Japanese Around-40 man returning from another world, returning to the age of 17 and becoming unrivaled

Name:
A hero returning from another world to save his childhood friend and sister is a matchless even in modern times! !
異世界帰りのアラフォーリーマン、１７歳の頃に戻って無双する





Summary:
　Kazu Namba reincarnated after dying from overwork and saved another world. When he turned 17 in a different world, he asked the goddess, "Please return me to my original world." I thought he was going to be the original Ala Foleyman, but he was brought back as a 17-year-old high school student. Moreover, you can use the abilities you acquired in another world! Will I be able to live a happy life again? This makes her heart flutter--in the wake of her childhood friend Yui, she learns that there is a ``human-eating variant--Valiant'' in this world. Kazu remembers the past and realizes that Yui will die in the near future. In order to save Yui this time, Kazu uses the power of another world to throw himself into battle in this world as well! A man who became a hero who returned from another world is a matchless man even in modern times! Mythical supernatural battle fantasy! ! Begins!

Why It Should Get Picked Up: I was surprised this actually got a Manga Adaptation! What's more, it doesn't look like Harem, the one on the left should be his little sister. What gave me a good impression was the Heroine whom struck me as a Gyaru but surprisingly looks good here, no? I've posted on this thread similar novels in the past and I've realized how reverse-isekais are getting popular now.

Raw Link: https://ncode.syosetu.com/n7707gs/

 

Wincest?!?!

 

This looks interesting but the title is not "Alafoley man" it's "Around-40 man". The Japanese word is "arafo" which means a man around 40 years of age.

 

Thank you for explaining that, I could only find alternative names from different sites

 

It is with a harem?

 

the chapters are short. hopefully someone pick this up.