Yumi (優美) Yamamoto Change your cover photoUpload Change your cover photoUpload Yumi (優美) Yamamoto Yumi Yamamoto (山本優美) is the President of LongeviQuest Japan and a Global Validation Commissioner. She is the great-granddaughter of Shigeyo Nakachi (中地シゲヨ), who lived to be 115 and was once the 5th-oldest person in the world This user account status is Approved