As is often the case in anime, Antique Heart centers on the activities of a school club, namely the "Academy Handymen," a group of 3 high school boys with vibrantly-colored hair who take on any job, no matter how big or how small, on campus. An old building on the school grounds is scheduled to be demolished, and the boys are hired to clean it out beforehand. They discover that a group of spirits led by a fairy named Saki is living in, and essentially tied to, the building. This is where the OVA gets its title -- the fairies are the "heart" of the "antique" building. If the building gets demolished, they disappear. The club members decide to start a petition to prevent the building's demolition, and the story continues to unfold from there. There is a nice 10-minute interview between the director and the mangaka afterwards, where we also see some behind the scenes with the voice actors, etc.
The animation wasn't that great, but serviceable. The designs for the main characters in particular were nice, though most of the other characters looked rather generic. The music is OK, but not memorable. Voices aren't bad, but there are some awkward pauses in conversations sometimes. As I said, the plot was straightforward, and wrapped up cleanly enough, but the runtime was so short that a lot of the development felt rushed. Not to mention that we don't get to learn much of anything about the main characters' background, personalities, etc. This feels like the pilot to a TV series that never got greenlit.
A decent watch, but don't expect anything profound out of it. One plus is that there is no fanservice and not much that could be considered violence, so I would consider this one family-friendly.
