Shangri-La Frontier Vol. 3 by Katarina, Ryosuke Fuji

A fast-paced, irreverent adventure for fans of isekai and RPGs! High schooler Rakuro loves hunting down "trash games," but one day he decides to play a AAA VR game called Shangri-La Frontier instead. He creates a character with a bird head, skips the cutscenes and jumps right in—but what awaits him in this game is different from anything he's ever faced...

PENCILGON'S PROPOSAL

Having survived a fierce attack by one of the Shangri-La Frontier PK clans, Sunraku goes into the fighting ring against ten powerful monsters as part of a unique scenario. He barely escapes with his life, only to then receive an invitation from his gamer friend Pencilgon to help her take down a unique monster known as Wethermon the Tombguard. With Wethermon still undefeated by any of the game's 30 million players, Sunraku may have bitten off more than he can chew!