Also known as: Yoshie Yoji (吉江与次)
Title: Echizen no Kami

Son of Yoshie Kagesuke, he served Uesugi Kenshin from childhood, and Kenshin had much affection for him. In Kenshin's assault against Asahiyama Castle in 1573, the hot-blooded 14-year-old Kageyasu dashed toward the enemy's gun corps, ignoring Kenshin's efforts to hold him back. Kenshin ordered his vassals to retrieve Kageyasu, resulting in many deaths. Afterwards Kenshin confined Kageyasu and prohibited him from going into battle.

In 1574 Kageyasu married the daughter of Nakajou Kagesuke and succeeded his father-in-law (who had no sons) as head of the Nakajou Clan.

He supported Uesugi Kagekatsu in the Otate no Ran after Kenshin's death along with his father and grandfather and served as his close aide.

After Kawada Nagachika's death in 1581, he was sent to the front lines and defended Ecchuu from Oda Nobunaga along with his father Yoshie Kagesuke but committed suicide in the same year with his father and grandfather when Uozu Castle fell. It's said that he was engaged in battle so constantly that he never set foot in the main castle of the Nakajou Clan from his succession to his death.