Following the events of the previous games, Hiroki and his harem of succubi—including the idol Ayu, the businesswoman Marina, and the tennis star Hazel—travel to a seaside resort. The narrative shifts away from the "new girl of the week" formula to offer more dedicated screen time for the established characters. Key events include:
: The group spends time at a private beach, engaging in typical summer activities like swimming and volleyball. Sakura Succubus 4 [Final]
: The story focuses on deepening Hiroki's relationship with the girls, featuring specific scenes such as teaching Cosmos to swim or listening to Hazel's ghost stories. Following the events of the previous games, Hiroki
Critics noted that this entry was a "pleasant surprise" because it stopped adding new characters to invest in the current cast. However, some fans have criticized the series for becoming "shovelware" due to its short length and frequent releases. Despite being labeled "[Final]" in some contexts, the series actually continued with multiple sequels, reaching at least in total. : The story focuses on deepening Hiroki's relationship
: Much of the story revolves around Hifumi, with players having the option to refer to her as "big sister" and share intimate moments. Completionist Guide