Synopsis: Golden Sparkle

As a first-year high school student, Himari Uehara lacks knowledge about sex due to his father's absence and skipping middle school health class. When he wakes up with soiled boxers, he is at a loss with no one to turn to for guidance. Fortunately, Himari's new high school friend, Gaku Asada, steps in to educate him on everything he missed in health class and beyond.