Traveler, Please Don't Break Character When You Cosplay-Transmigrate!

As a free-to-play player, it's only natural that I can't turn down a quest offering a million Primogems, right? Even if it appeared out of nowhere while I was at a convention I was attending, it gives a million Primogems! It just showed up in a somewhat unusual, somewhat special way, but that doesn't stop it from being a good quest! And then I got isekai'd. (Hooray!) On my first landing, I ended up in the Infinity Castle. Wearing Hu Tao's shell, I looked at the Upper Ranks, Lower Ranks, and the Demon King around me, then slapped the table. "Are kings and generals born to be kings and generals? Today, I'm becoming the Demon King!" The second landing went a little better... probably. Luckily, I was the legendary Anemo Archon, so I gathered the wind into a form and rested my hand on the shoulder of the possessed pink-haired boy. Then I taunted him, "So you're the one they call Ryomen Sukuna?" As it turns out, you shouldn't go overboard. The moment I landed for the third time, I saw a sword pointed straight at my head. To prevent a massacre, I reached for the knife at my chest and shouted, "You bastard, trying to slice my melon, are you?!" Before Player Miss arrived, the world was peaceful and harmonious. After Player Miss arrived... [Public Enemy of the World: Traveler: Lumine] spotted! Please stay away! System: (screaming) Traveler! You're Hu Tao/Wanderer/Raiden Shogun right now, not the Traveler! Stop acting out of character! Player Miss: Ehe :D Theme: End turmoil and promote peace