A sister couple attended their grandfather's funeral. When the ceremony went off without a hitch, the deceased's will came out. It reads: "The testator shall inherit the following property to the testator's grandson, Kaede, and Misuzu, with 40,000,000 yen in gold, and the proportion of inheritance shall be one-half each." It was written. However, the conditions were a test of love and trust between husband and wife ...