(New Heroine): The most significant addition in "Shiny Days" is the introduction of Inori Ashikaga. She is a central character with an entirely new route that features exclusive scenes and multiple unique endings, such as "Kagura Dedication" and "Moving up from Friends". Noan Murayama

Unlike the dark, snowy atmosphere of School Days , the exclusive scenes here are themed around summer festivals, beaches, and the Radish family restaurant, giving them a distinct aesthetic. Version Differences (All-Ages vs. Original)

It looks like you’re searching for content related to Shiny Days (the visual novel by Overflow/TN-Japan) and its adult scenes.

For those interested in experiencing "Shiny Days" for themselves, the series is available on various streaming platforms, including Crunchyroll and Funimation. Fans can also purchase DVD and Blu-ray copies of the series, which often include exclusive bonus features and behind-the-scenes content.

Is School Days as bad as people make it to be? : r/visualnovels