Mushi-Shi: Vol.4 (2006)

Neither good or evil, they are life in its purest form. Vulgar and strange, they have inspired fear in humans since the dawn of time and have, over the ages, come to be known as "Mushi". Episodes Comprise:
15. Pretense of Spring
16. Sunrise Serpent
17. Pickers of Empty Cocoons
18. Clothes That Embrace the Mountain