"The story before the TS girl provocatively teases her best friend ♀ and gets eaten - Summer Festival -"

Transsexual protagonist Mashiro invites Elina, her childhood friend and best friend, to a major event combining a summer festival and fireworks display during her first summer break after entering her new school. As usual, Mashiro decides to enjoy the event by seducing and teasing Elina. ※This is a yuri story featuring a TS (transsexual) protagonist and heroine. This work is a prequel to the previous work "The Story of How a TS Girl Got Her Female Best Friend Interested and Had Her Way With Her, Only to Be Deliciously Devoured." Previous work: http://ncode.syosetu.com/n8657eb/