SISUANA

The Shirakawa siblings’ parents are on a long business trip and they’ve entrusted Yui to take care of her brother. Yui excels in everything. She’s a model student and also a natural beauty. However, she takes “taking care of her brother” a tad bit too seriously. The next day, after their parents left, she locked her brother in a chastity belt to make sure he won’t “make any mistakes”. But today, the release day has arrived. Let’s see what she has in mind for him.