The night-blind Princess Royal X the beautiful son of a concubine
("Princess Royal" means the emperor's legitimate daughter, while "son of a concubine" means a child born out of wedlock. The story is narrated in first person from the female lead's perspective.)
The suspicious princess tries to guess every reason why Shen Congqing stays so devotedly by her side, only to discover that it's simply because Shen Congqing loves her.
1. The princess is conflicted, suspicious, and a little stubborn. At first, she's simply attracted to Shen Congqing's good looks. She favors him in her actions, but won't admit it out loud. Shen Congqing is a "pretty puppy," and the princess always comes before his career.
2. This is a romance-focused story. Nothing else is the main focus.
3. Night blindness means being effectively blind in dim or dark conditions, and only able to see vaguely in sufficiently bright light. The princess will also become completely blind for a period later on.
4. Happy reading.
Theme: Two hearts that understand each other