My Runaway Party Girl Senior Let Me Hit It

Toru Motozaki, an ordinary student who has to stay home alone tonight due to his parents' busy work trip, runs into Sakina Kitazumi, a girly senior at the same school, at a convenience store after going to buy dinner. Although she is a senior at school, they have only talked once or twice, but aren't that close, and awkwardly chat to each other....