Masami Ooshige

 ( Ōshige Masami), formerly known by her stage name Yuina Hanakazari ( Hanakazari Yuina), is the assigned manager of Fullmoon and a former fangirl of ROUTE: L (especially Keiichi Wakaouji).

Etymology

 * The name Masami means "right, proper" (正) (masa) and "fruit, good result, truth" (実) (mi).
 * Masami's surname Ooshige means "big, great" (大) (o) and "heavy" (重) (shige).

Stage Name

 * The name Yuina means "tie, bind" (結) (yui) and "vegetables, greens" (菜) (na).
 * Yuina's surname Hanakazari means "flower, blossom" (花) (hana) and "decorate/decoration, ornament, adorn, embellish" (飾) (kazari).

Personality and Traits
Masami is a sweet and kindhearted woman as it is shown on how she deals with Mitsuki Kouyama, but she is supportive and over-protective as she's a manager of an idol/popstar.

Biography
Like Fullmoon, Masami can also be childish at times but when it comes to work she is a great and unique manager. In the anime/manga, she is assigned to take Mitsuki Kouyama's (Fullmoon's) interview in which she gets confused. Later on, it was explained by Mitsuki and Takuto Kira (in his plush form) that Mitsuki can transform into Fullmoon. Keiichi Wakaouji, Mitsuki's doctor, doesn't agree with the fact that Mitsuki can turn into a sixteen-year-old girl and wants to become a popstar/idol. On the other hand, Masami notices that Wakaoji was a member of ROUTE: L. However, she doesn't recognize Takuto for some reason when he is in his human form (in anime).

She is supportive and protective towards Mitsuki and she is like a mother, sister, and friend to her and cares dearly for her. She seemingly develops an affection towards Wakaoji though they further don't go on with their affection in any scene. In the anime, she was once mistaken to be Wakaoji's fiancée by Yoneya Tanaka (Mitsuki's maid) and she had to compete with her for who is worthy to be Wakaoji's wife.

Trivia

 * The company that Masami is from is called Rage Pro.
 * In Episode 23, Masami moves to a new location, one that is close to Mitsuki's home.
 * Despite the fact that she isn't good enough to be handed a house to (alone), Keiichi Wakaouji and Mitsuki root for her.