Koibito Boshuuchuu (Kari)

 is the fourth single by Amatsuki. It, and peaked at #2 on the Oricon single chart.

Single Information
The coupling track STARTRAiN was used as the fourth ending theme for the anime Shinkansen Henkei Robo Shinkalion THE ANIMATION.


 * Catalog Number:
 * UICZ-5101 (Regular Edition)
 * UICZ-9106 (Limited Edition A)
 * UICZ-9107 (Limited Edition B)


 * Lyrics: Amatsuki (All tracks), Miyata "Lefty"Ryo (track 1), Saku (track 2 & Limited Edition A track 4) & Yurin (Limited Edition B track 4)
 * Composition: Amatsuki (tracks 2~3, Limited Edition A & B track 4), Miyata "Lefty"Ryo (track 1), Saku (track 2 & Limited Edition A track 4) & Yurin (Limited Edition B track 4)
 * Arrangement: Miyata "Lefty"Ryo (track 1) Saku & Shiono Umi (track 2 & Limited Edition A track 4) Hisane Kuusuke (track 3), kain (track 3 & Limited Edition B track 4) & Yurin (Limited Edition B track 4)

Digital

 * 1) Kobito Boshuuchuu (Kari) (恋人募集中 (仮); Looking for a Girlfriend (Tentative))
 * 2) STARTRAiN
 * 3) Koi ni Oborete (恋に溺れて; Drowning in Love)
 * 4) Hoshi no Komori Uta (ほしのこもりうた; The Star's Lullaby)
 * 5) StarMan!!!

Regular Edition

 * 1) Kobito Boshuuchuu (Kari) (恋人募集中 (仮); Looking for a Girlfriend (Tentative))
 * 2) STARTRAiN
 * 3) Koi ni Oborete (恋に溺れて; Drowning in Love)

Limited Edition A CD

 * 1) Kobito Boshuuchuu (Kari) (恋人募集中 (仮); Looking for a Girlfriend (Tentative))
 * 2) STARTRAiN
 * 3) Koi ni Oborete (恋に溺れて; Drowning in Love)
 * 4) Hoshi no Komori Uta (ほしのこもりうた; The Star's Lullaby)

Limited Edition B CD

 * 1) Kobito Boshuuchuu (Kari) (恋人募集中 (仮); Looking for a Girlfriend (Tentative))
 * 2) STARTRAiN
 * 3) Koi ni Oborete (恋に溺れて; Drowning in Love)
 * 4) StarMan!!!

Trivia

 * The song Kobito Boshuuchuu (Kari) was pre-released on January 7, 2019.