Shounen Maid Kuuro-kun: Tenshi no Uta

When his mother dies, his father vanishes, and a massive debt lands squarely on his shoulders, Curo Kazamiya is left completely out of options. Out of options, he sells himself into servitude under Miisu Hakuryuuin, a wealthy landowner who, surprisingly, isn't the cruel creditor Curo expected. Miisu offers him a deal: work as a servant and slowly pay off what his father owes. Simple enough, until it becomes clear that the duties involved aren't exactly standard household chores. This is a single-episode OVA from 2010, adapted from a manga, sitting firmly in Boys Love hentai territory. The setup leans into a classic master-servant dynamic, and the tone mixes drama with the kind of power-imbalance relationships that genre tends to center. The character designs skew young and soft, which is something to factor in before you decide whether this is for you. If you've already gone down the rabbit hole with titles like Papa to Kiss in the Dark or Sensitive Pornograph and you're familiar with what older Boys Love hentai looks and feels like, this fits neatly into that same space. It's short, the emotional beats are pretty surface-level given the runtime, and it doesn't pretend to be something deeper than its premise. Go in knowing what it is, and you'll know exactly whether it's worth your hour.