Boku wa Shiawase nanoka?

 is the second single by THE COINLOCKERS. It

CD

 * 1) Boku wa Shiawase nanoka? (僕はしあわせなのか?)
 * 2) Kodokude Iru Koto ni Narete Shimatta (孤独でいることに慣れてしまった)
 * 3) Boku wa Shiawase nanoka? (Instrumental)
 * 4) Kodokude Iru Koto ni Narete Shimatta (Instrumental)

DVD

 * 1) Boku wa Shiawase nanoka? (Music Video)
 * 2) Making Video

Limited Edition Type B

 * 1) Boku wa Shiawase nanoka?
 * 2) Maji de Pinto (マジでピンと)
 * 3) Boku wa Shiawase nanoka? (Instrumental)
 * 4) Maji de Pinto (Instrumental)

Regular Edition

 * 1) Boku wa Shiawase nanoka?
 * 2) Coinlockers no Nakami (コインロッカーの中身)
 * 3) Boku wa Shiawase nanoka? (Instrumental)
 * 4) Coinlockers no Nakami (Instrumental)

Special Edition

 * 1) Boku wa Shiawase nanoka?
 * 2) Coinlockers no Nakami
 * 3) Kodokude Iru Koto ni Narete Shimatta
 * 4) Maji de Pinto

Featured Members

 * Funai Miku
 * Narusawa Manami
 * Udo Yuna
 * Tamura Amiri
 * Goto Rika
 * Kinumoto Natsumi
 * Mori Futaba
 * Shimojima Kirara
 * Utsunomiya Mirai
 * Matsumoto Rina
 * HANNA
 * Яuu
 * Emily

Trivia

 * The single was originally set to be released on April 29, 2020, but it was delayed due to COVID-19.