I Belong to House Castielo

11-year-old Estelle never imagined she'd be sold off by her own mother. But the buyer is the one and only duke in the empire, Ein Castielo... and he's Estelle's father?! Feared across kingdoms for his blood-red eyes and the immense powers of his magical lineage, Ein is the cold master of House Castielo. His sworn enemies and dashing knights could become Estelle's, but does being his rare daughter really mean she is a child of this house? (Source: Tappytoon)

I Belong to House Castielo was published digitally in English by Tapas Media from July 18, 2021 to April 2, 2023. It was previously published digitally in English by Tappytoon, who released the first 120 chapters.