Help finding manga

[Ilikeromcoms292]

Looking for a manga where the mc was sort of betrayed by his childhood friend who was a sword hero or smt. The mc uses a gun n 1 taps a dragon, and becomes an s rank hunter ot smt i think, then idk what happens afterwords. Thanks for the help

 

[Painasbread]

Nice alias btw

 

[gorore]

https://mangadex.org/title/4e836868...unen-wa-shin-no-nouryoku-buki-master-de-sekai

 

[Ilikeromcoms292]

Ayt thx