A legendary necromancer known as the Corpse God is finally slain by a hero—only to wake up in the body of Polka Shinoyama, a newly assassinated boy in present-day Tokyo. Can the sorcerer survive in this strange new world?
Back then, I failed to grasp it.
.فشلت في التشبث به آنذاك
Damals konnte ich sie nicht verwirklichen …
Por aquel entonces no lo comprendía.
En aquel entonces no lo comprendía.
Autrefois,
je n’y suis pas parvenu…
Quella volta
Naquela época, não pude agarrar.
В прошлый раз… 
мне это не удалось.