Seal of God: The Prophet Surrendered to the Enemy, and the Demons Were All Confused

[Cai'er's childhood sweetheart start + human-demon hybrid + combat, awesome! + Daily life, awesome! + Not joining a party, low priority for main quests, using the Demon Hunter party as a transition, and trading between the human and demon realms]

Xingyuan transmigrates to the Throne of Divine Seal and discovers that he possesses a powerful cheat ability that allows him to foresee the future and turn misfortune into good fortune.

With innate strong mental strength and magical talent, as well as a handsome appearance, no family entanglements, and childhood sweethearts with the original female lead, isn't this the perfect protagonist's script?

What? You're saying I'm a spy planted in the Alliance by the Demon Race? Well, sorry, I've switched sides.