When a monster with a body temperature of just 31.2°C slips into the human world, she decides to raise another, more perfect monster~
With a bloodstained hiring letter in hand, Alice steps into the Eternal Night Research Institute, shrouded in the shadow of an inverted cross. Behind its blast-proof glass are humanity's most exquisite nightmares: pale, sweet “defectives” with ancient curses etched into their pupils.
As the most unusual new caretaker in history, her welcome gift to Nanao, a Rank D test subject, is this:
Undo the twelve chains locked with biblical seals, then plant her name in the scar left by a wedding ring.
And
Offer up the quivering warmth of her carotid artery in a blind spot of the security cameras.
“Big sister's heartbeat... it sounds like an invitation to sin~”
When frost spreads along the cracks in the frozen lake of her memories, Alice finally understands the bloody warning scrawled along the edge of the handbook:
The so-called Caretaker's Rules are nothing more than a love letter written by monsters to their own kind.
The thunder of inverted-cross helicopters provides the soundtrack.
The bones of generations of caretakers form the stage.
When the fingertips of two monsters born without warmth touch,
the entire research institute will begin to secrete hallucinogenic honey…
