I Became a Proper Member and Got a Girlfriend

Hikigaya Komori grew up in the middle of nowhere and learned everything she knows about human behavior and social dynamics from reading books and playing dating sims. Once, she went to a restaurant with her parents and said 'Thanks, you too!' to a waiter who told her to enjoy her meal. ...She hasn't had the courage to show her face there since. But fortune is a fickle mistress, and much to the chagrin of her and her classmates, she's found herself in the window seat at the back of the classroom ...