[Secret Heart ]Lyrics\u002FMaiko Nakamura,Taka Aoki Compose & Arrangement,Produce \u002FTaka Aoki (tiny step records)Piano\u002FHatanaka AyakoGutGuitar\u002FTatsuya MorinagaAll Sound Programming&Recorded by Taka AokiMixed by Yousuke Nishikawa(IRISOHYAMA)TV commercial song(2016)