Believing She Has Been Reincarnated into a Baseball Game, My Little Sister Is Aiming for the Koshien, While I Give It My All to Keep Her from Finding out That It’s Actually an Ntr Game

A former baseball star who quit due to the shock of losing his polite Yandere little sister is reborn as a homewrecker in a baseball NTR game. Now, alongside his gal-type tsundere little sister (who in the game is set as his ‘friend-with-benefits’), he’s aiming for the championship, willing to use any means necessary!

But for some reason, his polite-speaking little sister, who was supposed to be dead, has reincarnated into the game world as well. She thinks this is just a baseball game, so there’s no way he can let her find out that he’s been playing an NTR game! Yet, this is his second chance to fulfill the promise he made to her while she was still alive: to take her to Koshien.

In this bizarre world shaped by the nature of the NTR game, he uses (in the worst ways possible) its elements to power through powerhouse schools. At the same time, he absolutely cannot let his sister find out!

However, something begins to change with the game’s main heroine, whom he never intended to steal, and the protagonist-kun, his junior in this world…

This is an intense love-comedy about two sisters fighting over their brother, combined with the story of an underdog baseball team’s domination, leveraging the NTR game elements to rise to the top!