In the Instance Dungeon, Starting as a Western Gunslinger

【Instance tags: bandits, outlaws, gunfights, **?】 【Mission: Become the strongest in the West】 【Congratulations, chosen one. You have become Agent No. 001 of the Spirit Realm. This world is a beginner’s bonus, so do your best to meet the conditions for clearing it.】 【Agent’s starting skill unlocked: Lv. 9 Weapon Proficiency】 Qin Yi: “Damn, am I finally getting lucky enough to transmigrate?!” 【Starting agent weapon unlocked: Last Stand: One Desperate Shot】 “But why the hell does this weapon only have one bullet?!” The West, martial arts, industry, superpowers, the supernatural, immortal rivers... In these infinite worlds, extraordinary powers are infinite too. Qin Yi transmigrates through Spirit Realm instances, completes agent missions, leaves his own legend in world after world, and rises to the summit! “When you gaze into the Spirit Realm, the Spirit Realm gazes back at you~” Agent mission, begin! 【Congratulations on clearing the beginner instance. You are now a fully-fledged agent and know how the Spirit Realm works. Now, go try the next mission.】 【Unique mission triggered: Hunt down the Heavenly Dao】 ???