Please help me find this if you can!

I’m looking for a webcomic (fantasy/ action) that starts with a guy who just started his career as a hunter(maybe hero?) from a support staff to protect people by defending earth against dungeon breaks (which is like portals opening up on earth leading to dimensions full of monsters) to defeat the monsters in groups kinda and seal the dungeons.

I remember he had a dps role with a katana/ sword maybe and he entered a competition bit like the olympics but with weapons and superpowers?? with a team of people who weren’t members of any guild trying to win in their category and rank up. I remember some beef to do with their country lagging behind others because they prioritise the support role in battle formations instead of dps.

Anyway the art wasn’t amazing but I liked the story oh and the cover was of him in their team uniform with his sword maybe black and green or orange. Shit this is all I remember. I’d really love to pick this up again if anyone has a clue I cannot find it anywhere PLS HELP