Himaru Uehara's first year of high school is off to a good start, minus one problem--he keeps having wet dreams. With only his mom and sister at home--and having skipped health class in middle school--he thinks it means there's something wrong with him. Thankfully, a new friend has just the remedy and teaches Himaru exactly how to deal with those pesky dreams! But his solution only leads to more confusion, and the two find themselves navigating feelings they've never felt before.