Twitter covers. These covers were posted on Twitter and don't have official releases.

https://twitter.com/suisei_hosimati/status/978601113791299585 – Starduster
https://twitter.com/suisei_hosimati/status/988775240766439424 - 気づかないうちにアホガールOPがファフナーになる
https://twitter.com/suisei_hosimati/status/1003370784474034177 – 変わらないもの
https://twitter.com/suisei_hosimati/status/1003984348478038016 – 月のワルツ
https://twitter.com/suisei_hosimati/status/1057604960324440065 – Mrs.pumpkinの滑稽な夢
https://twitter.com/suisei_hosimati/status/1136032336414330880 – 夢町コントラスト
https://twitter.com/suisei_hosimati/status/1142404825310584834 – Leia
https://twitter.com/suisei_hosimati/status/1205493315048628229 – 礼賛歌
https://twitter.com/suisei_hosimati/status/1205879960319119360 – 少年少女モラトリアムサヴァイヴ
https://twitter.com/suisei_hosimati/status/1207981423530930176 – Neo sanctuary
https://twitter.com/suisei_hosimati/status/1210474131143053312 – La La Meltic StAr
https://twitter.com/suisei_hosimati/status/1212685216814231552 – 祭夜絵巻
https://twitter.com/suisei_hosimati/status/1219555640936292352 – 冬空プレシャス
https://twitter.com/suisei_hosimati/status/1239146084712083456 – 砂上ノ楼閣 with Toko
https://twitter.com/suisei_hosimati/status/1255819716045631489 – Stand by Me
https://twitter.com/suisei_hosimati/status/1274978034576048129 – それがあなたの幸せとしても
https://twitter.com/suisei_hosimati/status/1276089611052171264 – Gurenge
https://twitter.com/suisei_hosimati/status/1276461774083026944 – UNSTOPPABLE
https://twitter.com/suisei_hosimati/status/1396490561733816320 – Odo