If you're looking for anime similar to Requiem from the Darkness, you might like these titles. All recommendations are made by Anime-Planet users like you!
Legend says that if the flesh of a mermaid is consumed, the body becomes immortal. However, with the small chance of immortality comes a high chance of being poisoned, morphing and mutating into a monster beyond comprehension. Yuta is a wanderer: one of the few who has eaten the flesh and survived, and lived to tell about it -- for 500 years. By chance, Yuta meets a young woman named Mana who also shares the same fate, and together, they wander the land, searching for a mermaid who can free them from their immortal lives.
Rumic's Theater is a collection of 13 stories by Rumiko Takahashi, who is also responsible for such things as Inuyasha, Kimagure Orange Road, and Mermaid's Forest. While each story has its own tone, the focus tends to be based upon marriage, death, apartments, or general quirky situations and experiences. Sarcasm and mixups abound in this entertaining series.
Ten years have passed since the demise of the bubble economy, a time that polarized the world into two groups of people: the rich and the poor. In the present day, Saiga Tatsumi (a former war photographer) has been hired to investigate a secret club for the rich named the Roppongi Club, but he soon discovers secrets much darker than he’d ever imagined. With the help of a exploited goddess named Kagura, Saiga now possesses the power to kill by simply taking a photograph; but can he stay alive long enough to save her from her captors?
As with Paranoia Agent, dark, edgy, twisted plot characterizes the two series and sets them apart from the standard fluffy anime fare. Though set in very different eras, both address the darker side of human nature and blur the victim-villain distinction, a fact that troubles each protagonist to no end as they gaze deeper into the abyss and struggle to maintain their perspective.
"I have only abandoned my body, I still live here" - are the words emailed to friends of Chisa, several days after her death by suicide. As Lain delves deeper into the world of the "Wired" (also known as the internet), the line between it and reality becomes more and more unclear. Close the world, open the nExt.
It isn't unusual for a person to feel that the world around them is strange and has unexpected secrets lying just beyond their sight. However, for most people this is just an occasional sensation that greets them upon awakening or chases them into sleep. For the mushi researcher Ginko, it isn't a feeling at all; it is a knowledge which guides his travels and motivates his life. Found in the cracks between what is conceivable and what is not, are the varied life forms collectively known as mushi. They surround us and affect us, but their intensely different nature makes them unrecognizable to most. Ginko brings these life forms into perspective for the lives of those most affected and most in need of an explanation.
I recommend Mushishi for people who like Requiem simply because Mushishi also focuses on the aspect of traveling and facing off against exotic, supernatural forces. The protagonist in Mushishi is experienced at what he does, just like the main cast in Requiem. The only difference is that he "saves" lives, not punishes them. Both anime are also told in a story-like way. The episodes stand well enough on their own to remain unlinked to each other.