| Official |
|---|
| 1.1 | Happy my life ~Thank you for everything!!~ | 4:47 | yozuca* | D.C.II~ダ・カーポII~ スプリングセレブレイション グランドオープニングテーマ 「Happy my life ~Thank you for everything!!~」 | yozuca* | Single | | Lantis | LACM-4365 |
| 1.11 | Happy my life ~Thank you for everything!!~ | 4:47 | yozuca* | Ageha | yozuca* | Album | | Lantis | LACA-5730 |
| 1.11 | Happy my life 〜Thank you for everything!!〜 | 4:47 | yozuca* | 10th Anniversary Best [enjoy] | yozuca* | Album + Compilation | | Lantis | LACA-5913 |
| 8.1 | Happy my life ~Thank you for everything!!~ | 4:49 | yozuca* | CIRCUS 10th Collect | Various Artists | Album + Compilation | | CIRCUS | CIRCUS-0255, CIRCUS-0256, CIRCUS-0257, CIRCUS-0258, CIRCUS-0259, CIRCUS-0260, CIRCUS-0261, CIRCUS-0262, CIRCUS-0263, CIRCUS-0264, CIRCUS-0265, CIRCUS-0266, CIRCUS-0267, CIRCUS-0268 |
| 3.1 | Happy my life 〜Thank you for everything!!〜 | 4:49 | yozuca* | D.C. ~ダ・カーポ~ スーパーベスト | Various Artists | Album + Compilation | | Lantis | LACA-9400, LACA-9401, LACA-9402, LACA-9403 |
| 4.1 | Happy my life 〜Thank you for everything!!〜 | 4:47 | yozuca* | D.C. ARCHIVES SAKURA Edition MUSIC SIDE | Various Artists | Album + Compilation + Soundtrack | | CIRCUS | CIRCUS-0370, CIRCUS-0371, CIRCUS-0372, CIRCUS-0373, CIRCUS-0374, CIRCUS-0375, CIRCUS-0376, CIRCUS-0377, CIRCUS-0378, CIRCUS-0379, CIRCUS-0380, CIRCUS-0381, CIRCUS-0382 |
| Pseudo-Release |
|---|
| 1.11 | Happy my life ~Thank you for everything!!~ | 4:47 | yozuca* | Ageha | yozuca* | Album | | | |
| 3.1 | Happy my life ~Thank you for everything!!~ | 4:49 | yozuca* | D.C. ~Da Capo~ Super Best | Various Artists | Album + Compilation | | | |