Layton Mystery Tanteisha: Katri no Nazotoki File

They existed long before anyone can remember. They are simple and strange in nature, not resembling any other plant or animal in this world. In ancient times, people revered these bizarre creatures and called them "Mushi." People once again began to believe in the existence of these "Mushi" when they began affecting their lives in inexplicable ways. The one who connects the world of "Mushi" to the world of humans—they were called the "Mushi-shi." All life exists not to hinder others in this w

Second season of Mushishi Zoku Shou. Ghostly, primordial beings known as Mushi continue to cause mysterious changes in the lives of humans. The travelling Mushishi, Ginko, persists in trying to set right the strange and unsettling situations he encounters. Time loops, living shadows, and telepathy are among the overt effects of interference from Mushi, but more subtle symptoms that take years to be noticed also rouse Ginko's concern as he passes from village to village.

The third season of Modao Zushi.

The "Abyss" is the last unexplored place in the world. Strange and wonderful creatures roam within, and it is full of precious relics that present humans can't recreate. Those that dare to explore the depths are known as "Cave Raiders." An orphan girl named Riko lives on the rim. Her dream is to become a Cave Raider like her mother and solve the mysteries of the cave system. One day, Riko starts exploring the caves and discovers a robot who resembles a human boy. (Source: Anime News Network, ed

Neither good nor 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." The stories of the Mushi and the people they affect are all linked together by a traveling Mushi-shi, or "Mushi Master," who seeks rare Mushi sightings and uses his shaman-like knowledge of Mushi to help the affected people. What are the Mushi and what do they want? (Source: Funimation)