サイン書いてる動画あり


https://twitter.com/onefive_music/status/1276752427845210112?s=09
https://twitter.com/onefive_music/status/1276752158285692928?s=09
https://twitter.com/UrsaNoYoru/status/1276748926289207296?s=09
https://twitter.com/onefive_music/status/1276749422970298369?s=09
https://twitter.com/5chan_nel (5ch newer account)