Su Tang, the civil engineering dog, opened his eyes and saw something. Good news: Dressed as a princess, you have a distinguished status. Bad news: It's a wedding, and it will be packed and buried together with the prince who "passed away" from illness. Martyrdom alive, understand? Worse news: There are rock formations underneath the palace, which are professional, but not tools. When dreaming back at midnight, Su Tang often tortured his soul: Could it be that I studied hard for more than ten years in Hanchuang just to dig myself a grave that conforms to the mechanical structure and has zero probability of collapse? No, she doesn't admit it! Relying on the optimistic spirit of "as long as the mind does not slip, there are always more solutions than difficulties", Su Tang relied on a phoenix hairpin and half a candlestick to dig a broad road to freedom on the eve of his burial! Half a year later, a mysterious girls' school quietly emerged in the capital's celebrity circles. The gentleman here does not teach women virtues and beauty, but specializes in mathematics, physics, and chemistry, and occasionally offers classes on architectural aesthetic appreciation. With chalk in one hand and lesson plans in the other, Su Tang looked at the girls in the audience who were thirsty for knowledge. She had an overwhelming sense of accomplishment and felt that her life had reached its peak. Until one afternoon, the school door was kicked open. The leading man was tall and handsome, but he stared at her with a gloomy face. Behind him, the guards surrounded the school. Su Tang's heart skipped a beat: Does this handsome guy look familiar? The man pressed forward step by step and blocked her in the corner. His eyes slowly moved down and landed on her lower abdomen, which she subconsciously protected out of shock. He raised the corners of his lips and smiled coldly: "The king's escaped concubine is having a good time. Not only did she fake the corpse, but she also kidnapped the king's only heir?" Su Tang: "!!!" Help!