"Transmigrating into a familiar game world is a good thing..."
"Especially when you transmigrate into the game character you created yourself, and all the skills and items from the game are still there..."
"Hmph! My character is a man at the very top of the food chain!"
"But..."
"But this character is already over eighty years old! How am I supposed to enjoy life or run wild when I've transmigrated into an old man who's liable to kick the bucket at any moment!?"
This is the furious roar of an old man from inside a luxurious manor.