If you liked
Kaine
|
...then you might like
Zankoku na Douwatachi
|
Both have similar stories, starting off with a person who must replace a missing sibling. The art style and themes of the stories are similar, but Kaine has less horror. Aside from the first story, the other stories in Kaine are much more lighthearted.
If you liked
Death Billiards
|
...then you might like
Death Parade
|
Death Parade is based off of the short film, Death Billiards. Both works are connected/canon.
If you liked
Elfen Lied
|
...then you might like
Cossette no Shouzou
|
Both feature a lot of blood, supernatural elements, and tragic/dark romance. I would argue that Cossette has better visuals, but both have stunning soundtracks. Cossette is a bit more psychological than Elfen Lied, and much shorter.
If you liked
Tenshi no Tamago
|
...then you might like
1001 Nights
|
Both films are a bit abstract and psychological. 1001 Nights is much shorter, with a run time of around 20 minutes, and features no dialogue, only psychedelic animations and music.
If you liked
Soul Eater
|
...then you might like
B.Ichi
|
B. Ichi was a short manga created for a contest. Due to the time constraints of the contest, it was never finished. Nonetheless, it is still a great story. If you like Soul Eater, B. Ichi featuers a lot of prototypes of Soul Eater characters. It also has a similar story of characters with magical powers fighting each other.