All You!! (2020)

Blurb:
Mato is excited to start her new high school life at an all-girls school, where its students are required evaluate their teachers each semester. Being the motivated student she is, Mato is determined to examine each teacher closely to give an accurate evaluation. But she may have examined a little too closely, when she sees her Chemistry and Geography teachers, Mrs. Minato and Mrs. Takita, in the lab room together …

Source: www.anisearch.com/manga/53596