Is there any NTR content in the game?
No, there is no NTR (Not Taking Responsibility) content. The protagonist can choose to cheat on his girlfriend with her sister, but his girlfriend does not cheat on him with another man.
My Rival, Her Sister
In 0 playlists0 videos0 commentsUpdated Sep 14, 2026
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Last updated on LELALOL: Sep 14, 2026
My Rival, Her Sister FAQ
Can the sister have sexual relationships with other characters when playing as her?
The game is designed with a harem and multi-protagonist structure which may cause confusion. However, there are no indications that the sister can have sexual relations with other characters (male or female) outside of the main character's involvement.
How can I improve grainy renders in the game?
To reduce graininess in your renders, you might want to seek advice from experts in the Programming, Development & Art section of the forums. Many people who seem knowledgeable have provided tips for improving render quality over time.
My Rival, Her Sister Cheats
Cheats and codes for this game are available to signed-in members.