Who is the main character of "The Bass, the River, and Sheila Mant?

The unnamed narrator is the story's main character, or protagonist. He is a boy of fourteen who lives (at least for the summer) next to the Mant family, who have rented the cottage nearest his family's. He quickly develops feelings of a romantic, infatuate nature for Sheila, the middle daughter, and he works up the nerve to ask her out, only at the very end of August. She is three years his senior and seems mostly unaware of his existence. However, she agrees to go to a little festival that has live music with him one night, in his canoe, and when he learns that she finds fishing to be "boring" and "dumb," he is anxious to prevent her from realizing that he has actually hooked a massive bass while they've been making their way down the river. In the end, he cuts the line and sets the bass free and Sheila goes home with someone else anyway; he says that he never made that same mistake—of choosing a girl over a fish—again.