I Can Survive This New World On My Own
Hunter, a boy who lived alone, met a dying cat one day. He took pity on the cat and took care of it. He didn't know that the cat belonged to someone he never thought really existed.
When the cat died, it said that it will give Hunter something that will be helpful to him in. After that, strange things started happening to Hunter.
First, he was sucked in a portal, transferring him to another world. Then, he faced monsters he only read in novels or met in video games.
And starting from there, he continued his adventure.