Bài hát Hello, World! (Kekkai Sensen Opening) - BumpOfChicken. Tobira hirakeba nejireta hiru no yoru. Kinou dou yatte kaetta karada dake ga tashika. Ohayou kore kara mata maigo no tsudzuki
Osoraku kizuite shimatta mitai. Akubi no iro shita mainichi wo. Marugoto eiga no you ni kaeru. Tane to shikake ni deaeta koto. Nakayoku narenai sora no shita. Kokoro wa shimatte kagi kakete. Sonna fuu