Help find manga

[Frostoy]

After getting isekai'd, killed the enemy or whatever, he returns to the exact time and same place he was teleported(toilet) and he didn't lose his power from the other world.. that's all I know

 

[MavB_Ver]

@Frostoy
https://mangadex.org/title/35794/the-hero-who-returned-remains-the-strongest-in-the-modern-world

 

[Frostoy]

MavB_Ver