Hatsukoi Hanabi / Kaigansen no Mermaid

Hatsukoi Hanabi / Kaigansen no Mermaid is the debut single by Nankini!. It was released on June 5, 2018, and peaked at #19 on the Oricon single chart.

Tracklist

 * 1) Hatsukoi Hanabi (初恋花火)
 * 2) Kaigansen no Mermaid (海岸線のマーメイド)
 * 3) Omohibito (オモヒビト)
 * 4) Hatsukoi Hanabi (初恋花火) (off vocal ver.)
 * 5) Kaigansen no Mermaid (海岸線のマーメイド) (off vocal ver.)
 * 6) Omohibito (オモヒビト) (off vocal ver.)