Sono Hanabira ni Kuchizuke o: Lily Platinum is an adult visual novel and the tenth game in the Sono Hanabira ni Kuchizuke o series of games. It follows the fifth couple of the series, class representative Shizuku Kirishima and foreign exchange student Eris Shitogi, introduced in Sono Hanabira ni Kuchizuke o: Tenshi no Hanabira Zome.
