If you're looking for manga similar to Kiki to Lala no Papa to Mama ni Aitai, you might like these titles.
Oh no! Milk has disappeared through a mysterious door and only Cinnamoroll can save him! Will he find the courage to help his friend and still make it back to Café Cinnamon in time for tea?
Hasegawa Kouta, 17 years old, is a second-year high school student. His days are unremarkable and average when Kouta meets Mizuno Yuu, Yoshino Shunsuke, Nishimiya Ryo, and Minamoto Seiichiro, who are fellow students attending Hijirikawa High School. In an instant, Kouta's average life begins to be awash with sparkling light. A tale of a sparkling youth and his encounter with the Sanrio Boys. Our story begins.
The story centers around Monona, a girl who attended the wedding ceremony of her big brother whom she adores. However, she is whisked away by a cute rabbit-shaped Jewelpet Ruby, and before she knew it, she is in a Jewelpalace where potential candidates to become a Lady have gathered. "Momona was selected by Ruby as the best female Ladyjewel candidate for the Queen of Jewelland!?"
New teacher Okada Yuu and his senior, Ms. Rumi are on a field trip with their 16 elementary students to Sanrio Puroland. But suddenly they wander into a mysterious and horrific theme park called "Yuropia"! Amid their confusion, ominous Frog Egg mascots announce that the only way for them to escape is to "conquer the attractions and gather 10 medals." Will they be able to get out of "Yuropia" in one piece?!
Meet PET! PET (which stands for polyethylene terephthalate, a type of plastic) was a simple plastic bottle until nine-year-old Noboru Yamada recycled him. Now PET's a SUPER ROBOT programmed to protect Noboru at all costs! Whenever Noboru's in trouble, PET transforms, plugs in, and jets to the rescue! Unfortunately, PET's "help" usually does more harm than good, proving time and again that just because you call yourself "super" doesn't mean you have a clue.