Над альбомом работал композитор Cocone (HELLO SWEET DAYS メロディコレクションvol.3, HELLO SWEET DAYS メロディコレクションvol.1), а его релиз состоялся 26 сентября 2020 года. На саундтрек попало 50 композиций общей длительностью около 50 минут. Подборка является компиляцией оригинальной музыки. Выпуском пластинки занимался лейбл cocone music.
CD 1
| 1 | Happiness Poppin CircusCocone | 00:44 | |
| 2 | Shouzyo No Kanaderu IsshukanCocone | 00:39 | |
| 3 | Koi to OmajinaiCocone | 00:48 | |
| 4 | Fuyuyosei to Iyashi No HerbariumCocone | 00:47 | |
| 5 | Fuyu No Caffe LoungeCocone | 00:48 | |
| 6 | Crescent Moon StoryCocone | 00:41 | |
| 7 | Sweet Marry WhitedayCocone | 00:37 | |
| 8 | Marching BremenCocone | 00:47 | |
| 9 | Romance CinemaCocone | 00:47 | |
| 10 | Sakura No Kuni No MonogatariCocone | 01:10 | |
| 11 | Blue Rose GardenCocone | 01:01 | |
| 12 | Starry AcademiaCocone | 00:42 | |
| 13 | Strawberry Ni KuchidukewoCocone | 01:20 | |
| 14 | Strawberry AliceCocone | 00:53 | |
| 15 | Nakayoshi Bear No Honey CaffeCocone | 00:49 | |
| 16 | Fujisaku Himitsu No AtelierCocone | 00:57 | |
| 17 | Milky FennecCocone | 00:53 | |
| 18 | Heikosekai PlövgiaCocone | 01:01 | |
| 19 | Wedding LilyCocone | 01:07 | |
| 20 | Midnight BoutiqueCocone | 00:46 | |
| 21 | Kuro No Hanayome to Nemuri No KyoukaiCocone | 01:04 | |
| 22 | Monster HospitalCocone | 00:50 | |
| 23 | Party Night PoolCocone | 00:47 | |
| 24 | Kimi to Natu No KoihanabiCocone | 01:03 | |
| 25 | Sugar Sweet BunnyCocone | 00:55 | |
| 26 | In Love With Lovers...XXXCocone | 00:54 | |
| 27 | Natsu No Umi to étrangerCocone | 00:50 | |
| 28 | Fushigi Na Umi No MarmeidCocone | 00:49 | |
| 29 | Lost Doll WaltzCocone | 01:02 | |
| 30 | Yumemiru Amour ParisCocone | 01:05 | |
| 31 | Tooi Natu No KingyoCocone | 00:55 | |
| 32 | Mayonaka No ClosetCocone | 00:55 | |
| 33 | 7th Special Day!Cocone | 00:59 | |
| 34 | Koyoi Akatsuki No KokuniteCocone | 00:43 | |
| 35 | Mugen No Shiroki MoriCocone | 01:22 | |
| 36 | Photogenic SuperCocone | 00:42 | |
| 37 | Which Is the AliceCocone | 00:57 | |
| 38 | Monster Rock FesCocone | 00:56 | |
| 39 | Tori and Rito No Halloween ShopCocone | 01:01 | |
| 40 | Cho Ga Michibiku Ghost NightCocone | 01:03 | |
| 41 | Kinoko No Shojo to AkimekumoriCocone | 01:03 | |
| 42 | Radiant ExpressCocone | 00:55 | |
| 43 | Kobito No Pola to Fuyu No OtozureCocone | 01:13 | |
| 44 | Charme RagdollCocone | 01:12 | |
| 45 | Tabi No Shojo to Tokeitou No ShonenCocone | 01:08 | |
| 46 | Happy Teddy ChristmasCocone | 00:50 | |
| 47 | Satogashi No Kuni No SeiyaCocone | 01:12 | |
| 48 | Shirayukihime to Christmas No MahouCocone | 00:59 | |
| 49 | Akatsukikagura No ToshihajimeCocone | 01:10 | |
| 50 | Datenshi No InoriCocone | 01:08 | |
