(Edited 12-18-18)
(Picture at top is Nightmare in his passive form of you don't know)
This is a Sanscest book. It has multiple ships in it so you'll get your share of OTPs.
Ships this book will have
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CrossMare= Nightmare X Cross
OuterSci= Sci X Outer
Kustard= Classic X Fell
HorrorLust= Horror X Lust
ErrorInk= Error X Ink
DustBerry= Dust X Blue
Kremé= Killer X Dream
AfterDeath= Geno X Reaper
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Enjoy the book!! BAIII GUYS!