2 Works in The Death Note Anon Kink
Death Note and Cthulhu Mythos crossover. L is not entirely human, and is rapidly becoming less human after a certain event. L sets out to make Light his "bride" by force.
Light decides he wants an additional notebook in the human world in order to create more elaborate schemes, and Ryuk tells him that Light can get one, for a price. Light never thought the price meant he'd be dealing with an old problem yet again.