I read a manga a few years ago but i cant remember the name it invovled a guy getting branded on his chest in the beginning and he can sleep for 3 days also he wanted to join a group to fight demons or monsters or something

Beet the Vandel Buster?

I've only read the first chapter but that's what it sounds like.

"I've seen a look in dogs' eyes, a quickly vanishing look of amazed contempt, and I am convinced that basically dogs think humans are nuts." -John Steinbeck

thats it thank you