Our Dating Story: The Experienced You and the Inexperienced Me

When quiet nerd Ryuto Kashimas friends force him to confess his feelings for popular girl Runa Shirakawa, his entire world is turned upside down when she actually agrees to date him.

Ryuto is shocked when Maria, the girl who turned him down in junior high, suddenly transfers to his school. Ryuto struggles to keep his distance. Tough gyaru Nicole then surprises Ryuto even more with the news that his girlfriends birthday is coming up.

Runa invites Ryuto to the beach to celebrate their one-month anniversary in the sun. When nervous Ryuto is just starting to relax with his radiant, bikini-clad girlfriend, a typhoon strands the two and forces them to spend the night together in an inn.

Ryuto adjusts to living in Runas great-grandmothers house as the couple prepares for the upcoming summer festival. As the two work in the same shop during the day and sleep under the same roof at night, they start to imagine a possible future together.

Runa volunteers for the culture festival pamphlet committee and invites Ryuto to join to advance "The Friendship Project" with Maria. While Runa and Maria disagree over design, Maria and Ryuto get carried away talking about their favorite streamers.

Things have been tense between Ryuto and Runa since the culture festival. Ryuto plans to tell Maria they cant be friends anymore, but a shocking incident leads to a discovery that changes everything for Maria, Runa, and Ryuto.