"Hoshi no Otome to Rikka no Shimai" is a youth romance adventure game set in an astronomy club, presented by SAGA PLANETS. The protagonist, Hokuto Amanogawa, joins the nearly-defunct astronomy club at the invitation of his childhood friend, Koyori Hoshimi. There, he meets the "Rikka Sisters," six distinctive sisters, each harboring their own secrets. Through his daily life with them, a deep story and bonds connected to the starry sky are woven together. **Game Features & Appeal** ・**Rich Story Branching**: Individual routes are prepared for each of the six heroines, delving deeply into their pasts and present worries to approach the truth. The game employs a multi-ending system where choices significantly alter the conclusion. ・**High-Quality Visuals**: The delicate and beautiful artwork characteristic of SAGA PLANETS, combined with effective direction suited to each scene, enhances the story's immersion. The depictions of starry skies and school scenes are also noteworthy. ・**The Astronomy Club Setting**: Events unique to club activities, such as planetarium dates and stargazing parties, are sprinkled throughout, allowing players to fully savor moments of youth. **Recommended Play Environment & System** ・**Estimated Playtime**: Approximately 30-40 hours to enjoy the main scenario once. Expect 50+ hours for completing all routes and endings. ・**Save Functionality**: Equipped with ample save slots and a quick-save function. The game auto-saves before important choices, making it easy to experiment with branches. ・**Graphics Settings**: Supports Full HD (1920x1080) display. Allows switching between windowed and full-screen modes. **Recommended For Players Who** ・Are fans of SAGA PLANETS works or visual novel enthusiasts seeking solid scenarios and character development. ・Enjoy school-life settings and gentle daily depictions, and want to savor a story that slowly deepens relationships with characters. ・Are interested in themes that evoke romance for astronomy and the starry sky.