Satsuriku no Tenshi  

Angels of Death, Angel of Massacre, 殺戮の天使, Angel of Slaughter, Aniołowie zbrodni, ทูตสวรรค์ทัณฑ์อำมหิต

A 13-year old named Rachel wakes up and finds herself confined within the basement of an abandoned structure. She lacks any recollection or clue about her whereabouts. As she wanders around, she encounters a man with bandages on his body. He introduces himself as Zack and carries a scythe. Despite their unfamiliarity with each other, they develop a bond through bizarre and irrational vows. Trapped in this mysterious building, Rachel and Zack are determined to uncover the reason for their predicament and work together desperately to escape.

Satsuriku no Tenshi has been published in English as Angels of Death by Yen Press since December 19, 2017.