Kon'ya, Oji-sama ni Dakaremasu...

Hina has always admired Takeru since childhood, but her feelings were complicated when he married her sister, making him a distant figure. Still, she finds joy in working alongside him as a fellow teacher at their school. However, Takeru's father, Gouzou, notices Hina's hidden desires. Despite her youthful appearance, her body has fully matured as a woman. Gouzou sets a trap to make Hina his own, unraveling a tale of forbidden longing.