#warabimochi https://j.mp/35aM3Zd https://j.mp/32ZKfQa

aki

5年前

#warabimochi https://t.co/56R2AWXAxt pic.twitter.com/cKddjXwkAo

— Akihiko SHIRAI, Ph.D #VTC20 (@o_ob) September 7, 2020

from Twitter https://twitter.com/o_ob