As the Overpowered Protagonist’s Little Sister, I Don’t Want Any Affection!

After clearing the hell-difficulty fantasy game “Continent of Tarora,” he unexpectedly transmigrates into the game as the “invisible extra” — the adopted younger sister of the story’s overpowered, golden-protagonist heroine.

Now living in this very real world, she decides to go completely idle: avoid every danger, stay far away from the plot, and enjoy a perfect, carefree life sheltered under her big sister Ophelia’s wings.

However…

The future heroes who were supposed to meet, bond with, and be guided by her sister start turning their attention toward her instead one by one…