I have been working on this Sword & Cybernetics Game idea for awhile now.
Game will take place in 2 settings The Mundane Modern World - basically our world Then there is Wonderland - enter by cybernetics, drugs, near death experience, or the very rare magical gateway.
When the creatures on the other side get jealous https://youtu.be/P_34oNWmNsc
So one of the missions is to stop the planned re launch of Minky Momo the Anime That Causes Earthquakes - Cable TV is going to launch it in America https://youtu.be/2RxMbEkCBl4
This cursed anime is also the start of Truck Kun as a method of Isekai - Kids are commiting suicide by stepping in front of trucks to go off and play as video game characters in magical worlds.
This all must be stopped - The burden falls onto the PC’s Truck Kun the Greatest Serial Killer https://youtu.be/77if5mRTkOE
Game Systems I might use include Agents of O.D.D. , Esoteric Enterprises, and Skyscrapers & Sorcery
I ran a one off test awhile ago the players had 2 character sheets - one for each world their character was in.