3D Rotating Image Collection I and II

Tachibana Miku is the bride of Takumi. Both of them work in the pharmaceutical department.
And:
- Brother Takumi, who was in love with Tachibana Miku. After she preferred him to her brother, she held a grudge ...;
- school girlfriend and classmate Tachibana Miku - Reiko Kisirahi. She had fallen in love with her brother Takibana Miku-Takumi since school.
While working on a new drug, they noticed a hidden effect! New drugs had the property of enhancing sexual desire.
The heroes took advantage of him and as a result, the couple changed their sexual preferences.