Mahou Shoujo Lalabel: Umi ga Yobu Natsuyatsumi

It's summer vacation, and Lalabel and Teko have different ideas of where they should go; Lalabel wishes to go to the sea, while Teko wants to go to the mountains. After a game of rock-paper-scissors decides on the ocean, the girls travel with Toko to a guesthouse of her aunt and uncle. However, there's a problem – the adults are away, and the couple's son Ryota is left to tend to the guests himself! Luckily, Lalabel and the girls are more than happy to help with the work, even though the nefarious Biscus has set up his own magical inn nearby...