Binetsu Kuukan

Vol.3 Chapter 17
Chapter 16.5
Chapter 17.5
Chapter 16.5
Chapter 17.5
Akasegawa Naoya's mother remarried recently and he suddenly finds himself trying to get along with his new big sister Amane, a student of the prestigious Kasugano Girls' School. But his new big sister isn't like what you might first expect.
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