Fontaine Reiko, who fights as a heroine of justice with the power given by God when she was a girl, finally meets her life partner and spends her time happily. One night, she inadvertently reveals her true identity to her brother-in-law. For some reason, she can't use memory manipulation with magic, and on top of that, her evidence is also seized, and she is demanded to have a "ripe body" as a "hush fee". Fontaine is forced to choose between bitterness and immorality. She was transformed into a sexy game costume and challenged the decisive battle of sexual skills with her brother-in-law. "Now, please keep your promise, sister-in-law. Fufufu..." [BAD END]
