Minato Kasasa moves to a sleepy rural island with a population 157. Most of the residents are old, leaving only 5 high-school-aged boys to represent the youth of the island. Much to Minato's surprise, she is now the island's lone single female. What's she to do when she becomes the 5 eligible boys center of attention?

From Trinity BAKumA:

Kurose Urumi, an antisocial woman, just became a new teacher. On the first day of her job, she arrives in an empty classroom with a single laptop. Suddenly, a girl materializes out of the laptop, claiming to be her student, and explaining her job as a teacher is to “download the other students and help them graduate!” Kurose reluctantly agrees to the task, and slowly finds out that her job may be fun after all.