The Landlord is in Puberty

The Landlord is in Puberty (大家さんは思春期!, Ooya-san wa Shishunki!) is a Japanese four-panel manga series written and illustrated by Rurū Minase. A 12-episode anime television adaptation by Seven Arcs Pictures aired between 10 January and 27 March 2016.

Plot
A young man, Maeda, moves into a new apartment, only to find that his new landlady, Chie, is a middle schooler.