I Transmigrated into a Book as Cannon Fodder for the Demonic Sect, but Became the Tsundere Sect Master's Inner Demon

A disastrous start: I transmigrate into a book as a blind cannon-fodder villain from the demonic sect. How am I supposed to play this?

[Ding! Favorability System successfully bound.]

What? The stunning sect master is marrying me today?

Huh? She wants me to experience the power of the art of dual cultivation?

Oh... so I'm a natural Dual Cultivation Saint Physique!

Well, that's great... Wait, why are there so many women? The Dual Cultivation Sect's saintess, the Ice Mystic Valley's fairy, the Sword Inquiry Sect's sword prodigy... No, stop! My body can't take this!