Yurusen

Yurusen (ユルセン) is a miniature white phantasm who teaches Takeru about his abilities. Yurusen appears immediately when called upon by Takeru, and is able to summon either of Ghost's vehicles whenever needed.

Character History
to be added

Arriving late to Takeru's battle with Shiomaneking, Yurusen marvels at the ' as well as the  they form and bids the trio farewell alongside Takeru after they destroy the giant Shocker cyborg. When Takeru fights the cyborg Yamaarashi-Roid, Yurusen reveals to him that he can simply summon back his weapons that were destroyed by Jabel as the Gamma Ultima earlier. Yurusen later relates the sight of the giant robot to Akari when Takeru introduces her to.

Personality
While obedient to Takeru, Yurusen mainly appears in a childlike facade and has no concern for anyone's problems except for Takeru's or their own. Also, Yurusen can come off as pushy. If Yurusen has no answer to Takeru's questions in battle, they would respond sarcastically and leaves him with no assistance. Their sarcasm gradually worsens to the point of considering allowing humans to be sacrificed for the creation of Ghost Eyecons.

Powers and Abilities

 * Invisibility/Intangibility
 * As a phantasm, Yurusen is naturally both invisible and intangible to living people. It has the ability to make itself visible and solid at will, allowing it to interact with humans. It can also be rendered visible by the Kumo Lantern or the Shiranui developed by Akari.

Portrayal
Yurusen is voiced by Aoi Yuki (悠木 碧), who previously portrayed a young Mari Sonoda in Kamen Rider 555.

Etymology

 * Yurusen's name is derived from ghost (幽霊) and noisy (うるさい), and interestingly, also a Japanese slang "without forgiveness (許せん)" with same pronunciation.