After a biological son, Hideyori TOYOTOMI, was born, Hideyoshi had difficulty in deciding on how to deal with Hideaki, and planned to have Hideaki adopted by Terumoto MORI who didn't have any biological children.
実子豊臣秀頼が誕生し、秀秋の処遇に困った秀吉は、実子のない毛利輝元の養子に出そうと画策した。