The character known as Ear Hermit appears in the anime Sweet Valerian as a figure who plays a crucial role in the origin of the main heroines. The series refers to Ear Hermit as a living enigma. This enigmatic presence is not an ordinary person but rather a mysterious entity whose true nature is left largely unexplained within the narrative.

In terms of background, Ear Hermit is the one responsible for bestowing the Valerian License upon the three ordinary girls, Kanoko, Pop, and Kate. This event occurs when the girls are on their way to take their test for a moped license. It is at this point that they accidentally catch the attention of Ear Hermit, which leads to a significant deviation from their original plans. Instead of receiving a license to drive a moped, the girls receive the Valerian License from this being, an event that transforms them into the bunny-like heroes known as the Relaxation Combat Team Valerian.

The personality and motivations of Ear Hermit are not detailed in the available information, but the role in the story is well-defined as a catalyst for the main characters' transformation. The role is to act as the origin point for the Sweet Valerians' powers and mission. Without the encounter with Ear Hermit, the girls would never have acquired the ability to transform into Serotonin, Dopamine, and Valerian, nor would they have taken on the duty of defending their city from the evil Stress Team.

Regarding key relationships, Ear Hermit is directly connected to the three main characters, Kanoko, Kate, and Pop. The relationship is one of a mysterious benefactor or a source of power, as Ear Hermit does not accompany the girls on their missions or provide ongoing guidance in the same way as their panda-esque companion, Panda-bu. There is no information available about any character development for Ear Hermit throughout the series, or about any notable abilities beyond the power to grant the Valerian License that transforms the girls into their magical alter egos.