Episode 11
Usada is home sick with a cold, so he asks Saikawa to serve as babysitter in his place. Saikawa is good at everything, but can he handle being a babysitter? Later, Ushimaru visits the daycare room for the first time at Inomata's invitation. She has a hard time dealing with little kids, and now she's surrounded by them!
Aired 18/03/2018EP 11 - Episode 11
School Babysitters
The manga centers on the brothers Ryuuichi and Kotarou Kashima. Ryuuichi is in high school and Kotarou is still a toddler. After their parents are killed in a plane crash, the two brothers find themselves living with the chairwoman of the Morinomiya Academy, who herself lost her son and daughter-in-law in the same accident. The chairwoman, however, has one stipulation for the brothers in order to live with her: Ryuuichi has to work at the academy's daycare center as a babysitter.
(Source: Anime News Network)