Childhood Sisters

John Smith, a nineteen-year-old, very handsome and muscular college student, had a reunion with his childhood friends, Akane and Kiara Hoshizawa. The Hoshizawa sisters were two non-identical twin sisters who were a year younger than John, but their friendship was very close. They used to play together, take baths together, study together, etc., before the sisters had to move to a different middle school. But now, they have recently graduated from high school and are on their way to entering the same college as John, and they have grown "well". Will they remain friends or will something else happen?