There can be no long-lasting, unbroken vows in this world...
If Death also has a weak side, if angels and Death are sisters, if Death also has a past that is unbearable to look back on, if...
Then, how will everything turn out...
The agreement between the God of Death and the Creator is that he is destined to die!
More than 5 people mixed with science fiction, the average age is 12 years old!