Synopsis
Raise your affection with your muscular older sister, especially those massive leg muscles.
As her affection grows, her attitude toward the protagonist will change.
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![My Big Sister is Too Muscular [Girls Be Strong]](https://games.hnt.co.jp/wp-content/uploads/2026/03/10202091353.jpg)
![My Big Sister is Too Muscular [Girls Be Strong]](https://games.hnt.co.jp/wp-content/uploads/2026/03/10202091353.webp)





