Airi has always dreamed of marrying her fated true love and living a normal, happy life – a dream disrupted forever when Aram, a prince from another world, emerges from her grandmother’s mirror. She takes the young prince home with her thinking he is a lost child, giving him a home cooked meal and a place to sleep. However, in the morning she discovers that, as the result of a magic spell, Aram transforms into a 17-year-old boy whenever it’s dark, and her kiss is the only way to change him back! If that wasn’t enough, Aram is in hiding from his older brother, the evil sorcerer Jeile, who has fallen in love with Airi and intends to make her his bride! Will Airi ever be able to find her happily-ever-after?
Kilala is a girl who wants nothing more than to find true love, just like the Disney princesses she loves and admires. One day Kilala finds a beautiful boy passed out on the ground and awakens him with a Sleeping Beauty-style kiss. His name is Rei, and he (and his companion Valdou) are searching for the owner of a tiara; this ‘chosen princess' is said to be able to save their country across the sea. After Kilala's friend Erica is kidnapped for winning a princess contest, Kilala sets forth on an adventure with Rei to find her and beyond. Together, they travel to the worlds of many Disney princesses, make new friends, defeat powerful enemies and even find true love!
Both are shoujo romance series with similar age gap, older female x younger male. If you read one and liked it, the other should be right up your alley (keep in mind that MeruPuri has those fantasy elements, while Kumiko & Shingo does not).
Both manga revolve around similar concept: a character is cursed (or something along the lines) and now his\hers body transforms into one of different age. In MeruPuri it's a grade school aged boy who transforms into a teenager and in Mayonaka Lolita it is a teenage girl who transforms into a (you guess it) loli. In both series the only thing that can transform the character back into the proper age is a kiss from a loved person. Oh, and both series are shoujo.
Please Save My Earth like Merupuri has a highschool girl paired up with a much younger, yet mature boy. But it also has a much better story, lots of drama and it's fairly long. If you liked Meurpuri, you might like Please Save My Earth too.
Once there lived an eccentric author called Drosselmeyer who wrote grand tragedies - one of them was the tale of a prince who sealed away an evil raven by breaking his own heart into tiny pieces. However, before the story could be completed, the author died and the tale took on a life of its own. Now, in a town where fiction and reality meet, the story continues on its tragic course with Ahiru, a duck who transforms into the beautiful Princess Tutu in order to restore the prince's heart. But will Ahiru's act of love be enough to defy the story's terrible destiny and lead to a happy ending?