Haruhiko talks about how humans have used hot springs for leisure and for the health benefits for thousands of years. A gang of Phantom Monkeys transform the school grounds into their own Hot Spring which is guarded by a large perverted Monkey Phantom so no one else can use it. Every attempt to defeat the Phantom fails and even Haruhiko is unable to seal the Phantom with his sketch book as he cannot see the Phantoms feet underwater and therefore cannot draw them...