Mahou no Mako-chan

Comedy / Mahou Shoujo

Lalabel is a magical girl who arrives in the Human world to stop an evil wizard from stealing various magical objects or items. As a magical girl, she has a kitty for a companion and a magic wand. Coincidentally, she lands on the doorstep of the Tachibana couple and lives in with them during her stay in the human world. She attends the local school and begins to learn about the different things in the human world. (Source: Anime News Network)

Adventure / Comedy

As the mermaid princess of the North Pacific (one of the seven mermaid kingdoms), Lucia entrusts a magical pearl to a boy who falls overboard a ship one night. Lucia must travel to the human world to reclaim her pearl and protect the mermaid kingdoms. Using the power of music Lucia is able to protect herself and the mermaid kingdoms from a growing evil force.

Drama / Fantasy

Once upon a time, a mermaid princess named Lara fell in love with a human prince. To be with him, she used a witch’s potion to become human—but the magic came at a cost: If she failed to find true love, she would vanish into sea foam forever. Now, 200 years later, Lara awakens in Lake Biwa with one final chance at life and love. (Source: Crunchyroll)

Mahou Shoujo

Megu is sent to Earth in her early teens, she is adopted by Mammi Kanzaki, a former witch who gave up her royal ambitions to wed a mortal. Mammi bewitches her husband and their two children, Rabi and Apo, into believing that Megu has always been the eldest child of the family. Under Mammi's tutelage, Megu learns to control both her abilities and impulses in order to prove her worthiness for the crown. This Rite-of-Passage subtext is continued throughout the series. (Source: Anime News Network)

Mahou Shoujo

Chappy's story is much like Mahou Tsukai Sally (Little Witch Sally). Chappy becoming sick of the old customs of her people, left the Land of Magic for the human world. Soon her family sees how much she has in the other realm that they decided to join her new home. Chappy is known for being the first witch to use a wand. Her special chant is "Abura Mahariku Maharita Kabura. Mahou Tsukai Chappy is the fifth magical girl anime in history. (Source: Wikipedia)

Fantasy

Marina, a lonely mermaid, is bored of underwater life. She wants legs. She goes to the sea witch. She is given a magic whistle that when blown, can turn her into a human or mermaid. The Prince and Marina fall in love but she can't stay with him until she can get the sea witch off her case. (Source: Anime News Network)