Brynhildr in the Darkness

A grieving teen teams up with a witch‑like alien escapee to battle secretive scientists hunting the supernatural.

Ten years after a disastrous field expedition that claimed his partner Kuroneko and left him scarred, Ryouta Murakami tries to blend into ordinary high‑school life while nursing a secret obsession: proving that extraterrestrials exist. His world tilts when Neko Kuroha, a transfer student who looks uncannily like his dead friend, enrolls in his class. Neko isn’t just a doppelgänger—she’s a runaway from a clandestine research facility, a witch whose body is laced with alien‑derived abilities that flare up with lethal consequences. Drawn into a covert war between the government’s “Witches’ Lab” and the escaped victims, Ryouta becomes the reluctant guardian of these super‑powered outcasts. As the hunters close in, he must balance his yearning for proof of alien life with the harsh reality that the true monsters wear lab coats. The series spirals through gruesome battles, moral ambiguity, and the lingering grief that fuels both Ryouta’s resolve and the witches’ desperate fight for freedom.

A sci-fi horror mystery where a high school boy protects escaped test subjects with deadly powers from the lab that created them. Expect intense body horror, child endangerment, and frequent character deaths alongside lighter harem comedy moments.