Description:

Ishiyama High is a school populated entirely by delinquents, where nonstop violence and lawlessness are the norm. However, there is one universally acknowledged rule—don't cross first year student Tatsumi Oga, Ishiyama's most vicious fighter. One day, Oga is by a riverbed when he encounters a man floating down the river. After being retrieved by Oga, the man splits down the middle to reveal a baby, which crawls onto Oga's back and immediately forms an attachment to him. Though he doesn't know it yet, this baby is named Kaiser de Emperana Beelzebub IV, or "Baby Beel" for short—the son of the Demon Lord! As if finding the future Lord of the Underworld isn't enough, Oga is also confronted by Hildegard, Beel's demon maid. Together they attempt to raise Baby Beel—although surrounded by juvenile delinquents and demonic powers, the two of them may be in for more of a challenge than they can imagine. [Written by MAL Rewrite]

Description:

Ryuichi and Kotaro are brothers who lost their parents in an airplane crash. They're taken in by the chairman of Morinomiya Academy, who lost her son and daughter-in-law in the same crash, on one condition: Ryuichi has to babysit the kids at the daycare room in the school! This room was opened to help the school's teachers who had kids to take care of, but it suffers from a lack of staff until Ryuichi becomes the first member of the babysitter club formed to solve that problem. (Source: Crunchyroll)

Description:

Miyu is an 8th grade girl, whose parents have been hired by NASA. They take off to America leaving Miyu with Mr. Saionji. Later, Mr. Saionji decides to go on a 1 year long trip to India leaving Miyu alone with his son, Kanata. More complications rise when an Alien baby and his babysitter pet crashes/lands in their house. To make things worse, alien baby starts calling Miyu and Kanata Mom and Dad, also showing ESP power and floating around. (Source: ANN)

Description:

Souta Tawara is a web designer working in Tokyo. When he visits his family's Udon place in his hometown Kagawa Prefecture, he discovers a young boy. Upon confronting the boy, Souta soon learns his secret and decides to quit his job in order to take care of the boy, Poko. The daily adventures of the two slowly enfold as Poco energetically navigates his way through Kagawa, the "Udon Kingdom," along with Souta.

Description:

The story revolves around a girl named Yuuka, who encounters a being from the depths of the Earth named Chii-chan (a pun of chiteijin, the Japanese word for underground-dweller), and an alien named Ucchan (a pun of uchuujin or alien). The story follows their heartwarming and chaotic everyday lives together.