Mai, a returnee student attending a missionary school, has recently awakened to her masochistic side and loves outdoor play. With her distinct, wide eyes, she exudes the charm of a modern schoolgirl. Meanwhile, Kumi has no prior sexual experience and is curious about girls, possessing an innocent, girlish face yet surprisingly voluptuous figure. Jun is a lolita type with a plump, curvy body that's highly attractive. She loves older men and is deeply into masturbation, her pure charm standing out vividly.