Daddy is actually the real parent of the long-living eromanga started since the Creation of the World

The "Tribulations of Iwanaga-hime-tan" series...!

Iwanaga-hime vs Omata-no-Orochi Originally Yamata no Orochi. Omata = Crotch, so now it's "The Great Snake of the Crotch"

By Ooyamatsu

That means you're the younger sister, Sakuya

Even though this might not be news to our knowledgeable gentlemen readers,

Konohanasakuya-hime is the goddess of flowers, the symbol of fleetingness

The older sister Iwanaga-hime is the goddess of the stone, the symbol of eternity

In other words, this is the original legendary form of the age-old conflict