I picked up this manga because i was bored and wanted some short series to read and i didn't regret it. At first it seems like any other "killing game" type of series but as series goes on you will just be mind blown (i am only telling what happend to me).
Story: It's just a classic "killing game" but i don't know why i really enjoyed it (8)
Art: I myself found this art really amusing (9)
Characters: We didn't really got some good character development, which is expected with only 32 chapters (7)
Enjoyment: I will just say i speed-runned this shit (10)
So in the end i really suggest you read this if you want some fast read.