Musik
Selesai tayang
2 episode
Yakusoku (2019)
Promise · 約束
Sinopsis
The video can be considered a prequel to Saikai.
Similarly, there are two versions of the video that are sung by Hatsune Miku on Niconico, and Harumaki Gohan on YouTube, both focus on a different girl.
Trailer
Trailer belum tersedia untuk judul ini.