DAIGO updated his blog which he talked about Seiban's Tenshi no Hane backpacks which he dressed up like an angel in the CMs
http://ameblo.jp/daigoblog/entry-12156271393.html
Feels funny for DAIGO to carry 1 especially since the backpacks are for kids
Let alone why did he buy 4 backpacks in different colours ? O_o
Perhaps to give them to his older brother's kids & SHINPEI's niece + nephew ?