Hunting Oni in an open world
Toukiden 2 is a hunting action game where you play as a Slayer and take on the Oni menace. The core of the game is the fight itself: you pick a weapon, learn the patterns of each Oni, and break it apart using the dynamic targeted destruction system. That system lets you aim at specific parts of a monster and tear them off, which changes how a fight plays out and rewards you for reading the creature rather than just swinging at it. Alongside the hunting, there is character customization so your Slayer can look the way you want before you head out.
Playing together with friends
Online Co-op is a Steam feature for this game, so you and your group can team up and hunt Oni together. Co-op fits this kind of game naturally: you can split roles, cover each other when an Oni turns on one player, and bring down targets that would be a long solo fight. The tags include Multiplayer and Online Co-Op, so the shared hunt is a supported way to play rather than an afterthought. Group up, pick your weapons, and go after the Oni as a unit.
What to know before starting
The game runs from a village that serves as your base of operations, and the world between the village and the battlefields is a vast open world you explore yourself. That means there is travel and exploration between hunts, not just a menu that drops you into a fight. The tags cover Action RPG, JRPG, Adventure, and Hunting alongside Hack and Slash, so expect the RPG side of things: progression, equipment, and the build-up around each hunt. It is a third-person game, and Controller is listed among the tags, so a controller is a supported way to play. The tags also note Singleplayer and Female Protagonist, so you can play on your own and choose a female Slayer if you prefer.