I, the Second Personality of Sizi, Guardian of the High Tang

[Tang Dynasty + Little Sizhi + sweet romance + lighthearted fun + wish fulfillment]

Su Han transmigrates to the Tang Dynasty and awakens a Second Personality System.

He also becomes the second personality of Princess Jinyang, Little Sizhi.

By day, she is the beloved little princess, and he is the voice that occasionally rings out in her mind:

“Su-su bro, this medicine is so bitter! You drink it for me, okay?”

“Sizhi, suck on a White Rabbit candy and it won’t taste bitter.”

“No way, big bro, you drink it.”

“All right, you really are impossible to say no to. Take a nap, and I’ll wake you later.”

“Yay, Su-su bro is the best!”

At night, he creates a blissful paradise for her deep in the sea of consciousness.

“Sizhi, this slide is too long. Let’s use the shorter one over there.”

“No, big bro, just play with me. I love this slide so much!”

And so, from that day on, Sizhi often talked to herself, and was happier than ever.

Li Shimin: Sizhi, who are you talking to?

Sizhi: Su-su bro!

Empress Zhangsun: Sizhi, who gave you these bunny candies?

Sizhi: Su-su bro!

Li Shimin and Empress Zhangsun: Who is Su-su bro????