manga name

[wintershade9]

im looking for a manga about boy who goes to school with his sister and everyday life problems are fixed with games apparently the boy used to be a top gamer but retired because he is tired of playing games on the first day of school he interfered with a classmates game against someone else and his sister is obsessed with him the manga just came out

 

[Wizardrone]

Did you mean? this one?
https://mangadex.org/manga/24850/jishou-f-rank-no-oniisama-ga-game-de-hyouka-sareru-gakuen-no-chouten-ni-kunrin-suru-sou-desu-yo