となりのロボット (Tonari no Robot)

Plot

In an ordinary neighborhood, a team of engineers are developing a robot they call Praha, who looks like an ordinary human high school girl. Chika, a 4-year-old girl who lives next door, meets her neighbor and learns her secret. The two girls become friends and high school classmates, and Chika teaches Hiro—as she calls Praha—about human emotions, including love.