A female agent during the Anti-Japanese War was seriously injured and lost her memory after being plotted by an insider within the organization. However, she fell into the gentle trap of the enemy's intelligence chief (who was ostensibly just his "doctor fiancée"). But what the other party doesn't know is that the soldier with the real code name "Qingque" has already secretly carved the complete mission information and the list of regional spy networks into the 206 bones of his body using "bone carving micro-etching". Only when he truly falls in love with someone, will a "decoding signal" be generated deep in the bone marrow. This means that if Shen Yunwei wants to dig out information, she has to teach the girl "what love is" first.