The Princess Can Be Gentle

Cheng Ruoling, the Third Princess of the Qiming Kingdom, is extraordinarily frail, a complete invalid who can only rely on medicine to stay alive. Yet this very person is a supreme expert with unparalleled martial skills, spending all day pretending to be weak while secretly defeating her enemies.

Zhongli Jingchen, the Second Prince of the Canglan Kingdom, was separated from his homeland and left stranded in the Qiming Kingdom because of a mistake by the emperor of Canglan when he was young. He became the Third Princess's guard, and their meeting made him resolve to protect her for the rest of his life.

Excerpt:

“Did the princess pretend to be weak today?”

“Your Majesty, the princess beat up the heir today.”

Clearly, this meant that the princess had not pretended to be weak today, but had instead beaten someone up with extraordinary ferocity.

“...It doesn't matter... As long as she's happy.”

As soon as he finished speaking, a protesting cry came from the doorway.