MTL - Naruto: Ten-year-old Kaleidoscope, Opening Betrayal Konoha - Chapter 490

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates

When the average man is suddenly thrown into a video game as an extra, fated to die, they might first think to hide or run away. But not Luka. A man now inhabiting the body, he simply wants to survive - no matter the cost - even if it means he has to kill the main character!

Oosuki Masato is an ordinary high school boy who is magically transported to an alternative world, but for some reason his doting, over-protective mother comes along as well.

Iruma Takumi, a 40-year old salary man, was dragged into a hero summoning just like in a template. What was his fate? The Goddess sent him and the heroes to the other world separately.

With the Goddess’ overprotective support, he landed in a different world looking handsome, rejuvenated, and quite different from a Japanese.

Although he wanted a slow life while working in the manufacturing trade, that was not permitted by the Goddess’ special body and abilities.

Would Takumi be able to live a peaceful life in a different world?