Kizuna

Kizuna (キズナ, Kizuna) is sung by. The song lyrics were written by, and the song was composed and arranged by.

Kizuna was originally released within the game on December 2, 2022. It becomes available in normal lives after clearing Part 6 Chapter 10.4. Kizuna was released on March 8, 2023 as part of the Kizuna Single, which can be purchased digitally on the iTunes Store, animelo mix, music.jp, mora, and Recochoku (レコチョク).