In one world the MC is in a game like setting and the ML is in multiple people .. all are the top tier of their races.. like elf, demon etc. The elf ML had been asleep for a long time and woke up only for MC. everything was gratuitous like this example.
hello! is it The People Who’re Supposed To Kill Me Fell For Me Instead ? the 3rd arc is about mc went into a game novel he wrote. and the ml was like the highest/strongest npc in the game because he can be whatever he wants. first he becomes a death god (if im not mistaken), then he turned into the demon king, the mc went to elf town(?) to do quests etc so the ml became the elf king who was sleeping the whole time. then mc received a task to "wake the elf king up". ml also made the the mc status with the elves to be "respect" (i think)