Having defeated the massive alien construct that mysteriously appeared in their town, the magic club must now deal with the giant sakura tree that has been left in its place.
This continues directly from where the OVA series left off and so it would be a good idea to watch that first. That said it’s very different from the prequel, aside from the comedy style, and takes a much slower slice of life approach.
More Information:
aniDB
Crunchyroll
Wikipedia