Kyoukai no Kanata, Kyokou Suiri Recommendations
Girl and boy with supernatural powers meet then fall in love.
The boy is kind of "dangerous".
Even the characters look similar, lively short girl with short hair and tall melancholic boy.
The same circumstantial event when girl with special ability finds boy with a different special ability and from there on boy's life was never the same again when he finds himself being drafted into service by the girl into fighting supernatural entities.
In/Spectre and Beyond the Boundary are two supernatural anime about a short-haired girl and a boy who both have supernatural abilities—the girl is personally associated with supernatural beings and the boy is seemingly immortal. The two eventually form a relationship due to their supernatural connections.
both are are romance, supernatural and involve youkai. they have very similar vibes so if you enjoyed kyoukai no kanata you’ll probably enjoy kyokou suiri.