| Format | Title | Artist | Label | Model Number | Release | Press |
| 12 | UN BIRTHDAY CAKE | ゆうし | EFF PROJECT,UNDEROWLS LAB. | EFFYUS2012 | 2021/01/18 | - |
| Side | Track | Title | Produce |
| A | 1 | OT(ワン・ツー) | ゆうし a.k.a. boxtissue |
| 2 | HU(フー) | ゆうし a.k.a. boxtissue | |
| 3 | HO(ホー) | ゆうし a.k.a. boxtissue | |
| 4 | GI(ディギディギ) | ゆうし a.k.a. boxtissue | |
| 5 | WA(ワッワッ) | ゆうし a.k.a. boxtissue | |
| B | 6 | MM(ムー) | ゆうし a.k.a. boxtissue |
| 7 | LA(ララ) | ゆうし a.k.a. boxtissue | |
| 8 | OH(オー) | ゆうし a.k.a. boxtissue | |
| 9 | OT(ワン・ツー)(inst) | ゆうし a.k.a. boxtissue | |
| 10 | LA(ララ)(inst) | ゆうし a.k.a. boxtissue |
