100-Nen Hayari Uta Shuu Sono 1

 (開歌-かいか- 100年流行りうた集 その１) is the first CD-R single by caeca. Released on January 11, 2020, it contains a cappella cover songs. This release's available at live venues and the group's online store.

Tracklist

 * 1) Charles (シャルル) - Balloon cover
 * 2) Oyoge! Taiyaki-kun (およげ！たいやきくん) - Shimon Masato cover
 * 3) Tsubomi (蕾) - Kobukuro cover

Single Information

 * Lyrics: Balloon (Track 1), Sase Juichi (Track 2), Kobuchi Kentaro (Track 3)
 * Composition: Balloon (Track 1), Takada Hiroo (Track 2), Kobuchi Kentaro (Track 3)