Protagonists Ren and Rai fell prey to the Diabolo in an attempt to save the soul of Ren's cousin, 7-year-old Mio. Although they fail in their attempt, they were 'rewarded' with powers they would each gladly trade for the life of the young girl.
Just who - or what - is the Diabolo? What enticements does he offer the kids at school? And, if they accept his 'bargains,' what foul fate awaits them on their 18th birthdays?
Chapters
| Vol.3 Shards of an Angel | Jan 18, 2019 | more_horiz |
| Vol.3 Promise | Jan 18, 2019 | more_horiz |
| Vol.3 Final Battle | Jan 18, 2019 | more_horiz |
| Vol.3 Betrayal | Jan 18, 2019 | more_horiz |
| Vol.3 Salvation | Jan 18, 2019 | more_horiz |
| Vol.3 Reunion | Jan 18, 2019 | more_horiz |
| Vol.2 Decision | Jan 18, 2019 | more_horiz |
| Vol.2 Awakening | Jan 18, 2019 | more_horiz |
| Vol.2 Suspicion | Jan 18, 2019 | more_horiz |
| Vol.2 Omen II | Jan 18, 2019 | more_horiz |
| Vol.2 Omen I | Jan 18, 2019 | more_horiz |
| Vol.1 Destiny | Jan 18, 2019 | more_horiz |
| Vol.1 Reincarnation Ritual II | Jan 18, 2019 | more_horiz |
| Vol.1 Reincarnation Ritual I | Jan 18, 2019 | more_horiz |
| Vol.1 Conception II | Jan 18, 2019 | more_horiz |
| Vol.1 Conception I | Jan 18, 2019 | more_horiz |