Description: The main character, Ritsu, has a girlfriend named Sarina who is in the same class as him. Sarina has a quiet personality, keeping a distance from her lively classmates and reading a book in the corner of her classroom. Her classmates nicknamed her Princess due to her petite physique and neat appearance. The kind-hearted, slightly inexperienced Ritsu matches her temperament and wavelength, so they slowly start dating at their own pace and deepen their relationship...