"I" was followed by the criminal police in Yokohama. At this time, "Red Buoy" Senda was killed, and many gold coins were found at the scene. "I" discovered through clues that the prisoner was hiding in an abandoned warehouse. While the criminal police were chasing the prisoner, "I" stayed in the warehouse to investigate. It turned out that "Grumpy Yin" ordered Xiantai to rob the Ginza gold nugget, and later killed him for fear of leaking the secret. "I" bought the warehouse and handed over the acid that dissolved the gold nuggets to the Metropolitan Police. Grandpa Sohei wanted to sell the house due to debt, so "I" asked them to leave Yokohama. Qingzi wanted to stay with "me", but was dissuaded by "me". What to do with the gold nugget worth 90,000 yen? What will happen to "me" and Qingzi's future?
