Doro no bunzai de watashi dake no taisestu wo ubaouda nante (Associated Names)

“To protect the girl fated to die an untimely death” That was the mission given to me by my senpai in heaven. What were they thinking? Making me come down to earth to protect a foolish human…! Even worse, an ordinary girl…? Why should we, graceful angels, do such a thing!? I’m certain my senpai…