はっぴーばれんたいん・・・?????本家様: https://www.youtube.com/watch?v=EJMf1NdrYjo 楽曲情報(敬称略、本家様より引用)Lyrics & Music: DECO*27Arrangement: TeddyLoidGuitar: RockwellMovie by OTOIRODirector: あわしまKey Animator: あわしまAnimator: 1024,kee,RLPatissier: MARiA,Kurara,HikariAssistant: GA,lowpolydogLogo,Telop,Thumbnail Designer: Yuka FujiiProducer: iori majima