Warrant Officer Kenji Yanagiya (柳谷 謙治 , Yanagiya Kenji , March 1919 – February 29, 2008) was a member of the Imperial Japanese Navy's Zero fighter aces who fought the Battle of Solomon Islands in October 1942 – June 1943. He is best known as the only escort fighter pilot of the Yamamoto mission to survive the war.
Kenji Yanagiya was between 23 and 24 years old when he fought in the battle of the Solomon Islands.
If the battle was fought between October 1942 – June 1943, then Kenji was definitely between 23 and 24 when he fought the battle since he was born in March 1919. Again, the system can't seem to add.