Mama is a 4th Grader

is a Japanese shōjo anime by Sunrise. It aired for 51 episodes from January 10, 1992 through December 25, 1992, where the series won the 24th Seiun Award in Media category.

Plot
In the year 1992, a 4th grader named Natsumi Mizuki was left home alone with her mangaka aunt after her parents moved to London since her father's company only bought 2 tickets. One night while watching a movie, a lightning storm occurs when suddenly the televsion glows and a baby appears right in front of Natsumi. Along with a strange heart-shaped compact, Natsumi learns that the baby is none other than her future daughter accidentally sent 15 years into the past from the year 2007. Natsumi was adviced by her future self to take care of the baby until a way to return her to her original time is found.