Rumi: Not A Precocious Crush

When Rumi first developed a crush on Hachiman, she didn't even understand what the word 'Precocious' meant. But she had waited and waited and now that she is in high school and he is her homeroom teacher, she thinks it's time to act on her feelings and pursue him. But the old - really big emphasis on the word 'OLD'- women in his life are a huge problem.