Mari Morgan

The heroine of this work, a foreign exchange student. She's currently staying at her grandparents' house, three stations away from the protagonist.

Her defining features are her un-Japanese physique and mature appearance that belies her age, though her mental age is a bit young. She's bright, open, and easygoing, but also extremely gullible.

She learned Japanese from anime and manga, so her knowledge is a bit skewed, but she's fluent. Her proud bust size is ○ cup. She's fascinated by Japan's HENTAI culture and takes an interest in the protagonist's (penis), reputed to be the largest in the academy.

However, she gets outmaneuvered every time, and eventually becomes captivated by his (penis).