The journey to 100 friends begins with a single conversation. Socially anxious high school student Shoko Komi's greatest dream is to make some friends, but everyone at school mistakes her crippling social anxiety for cool reserve. Luckily she meets Tadano, a timid wallflower who decides to step out of his comfort zone in order to help her achieve her goal of making 100 friends.

It's time for the school trip to Kyoto, and even though Komi has never been on one before, she's not worried. After all, she'll have Tadano and her friends at her side! But then she's assigned to be buddies with two girls she doesn't even know. Is Kyoto ruined, or will Komi be able to make new friends all on her own?!