The wolf is called The Dark Soul because he got the Dark Soul achievement in Dark Souls 3. His favorite activity is playing Dark Souls but he can't do that anymore because he is a wolf. He is constantly depressed because he had a Deep Battle Axe and a Fume Greatsword in Dark Souls 3.
Thanks to @ReloadScratchKitty for the Wind of the Wolf RP studio. Link: https://scratch.mit.edu/studios/5739567/
