After I Transmigrated Into a Book, the Demon Lord Forced Me to Shed My Secret Identity

[System + secret identities + sweet romance + cultivation + raising] The Demon Venerable who rules the entire Demon Realm married the little immortal Su Yingxia, but he's always jealous of her! Frustrated and helpless, why has the Demon Venerable fallen so deeply in love with Su Yingxia and become so devoted to her? It turns out he's the Demon Venerable Su Yingxia deliberately raised from childhood! So, Su Yingxia, what exactly is that curse of yours? And how many secret identities do you still have to reveal!