A hidden paradise that doesn’t appear on maps or satellite images: "Rainbow Island”
Rainbow, the blue hero who protects this island, Kim Sun-Yi, an ordinary hula girl who savors simple, peaceful happiness,
and Aurora, the hero of the dazzling and beautiful Soul City.
A story of love and growth woven by these three very different characters.(Source: KakaoPage, translated)
— Description from AniList community (anilist.co).
