Marumi Maruyama
Maruyama rumi
Kanji 丸山 留美
Rōmaji Maruyama Rumi
Personal Information
Gender Female
Age Presumably in her late teens
Status Alive
Occupation Actor
Manga ACT.124

Marumi Maruyama plays the protagonist in Box "R".   


She prefers to be called "Rumi," which indicates her childish attitude.


She has a mid-length, light-colored hair with light-colored eyes. She is usually seen wearing the high school uniform in the Box "R" set.

Back ground

Marumi Maruyama was mentioned to be the up-and-coming talent[1]. She is mentioned to be a super popular idol even before the shooting of Box "R."[2]


At the start of filming she sometimes thought of Kyoko as scary because of her use of Mio's mannerisms while playing Natsu. Like others, she initially doubted Kyoko's acting ability, but gained respect for her when she demonstrated the Natsu she had created.

Natsu's arc

Outside the Box "R" set, Marumi Maruyama loses her hat to the wind, but an elegant female—later revealed to be Kyoko as Natsu Kitazawa—catches it and gracefully sets it back on her head without breaking stride. Marumi stares after her in befuddlement.[3]

Marumi later confides to Chiori about Kyoko being a completely different person and declared that she was more like Natsu.[4]

During the bullying scene, the director asked the crew not to let Marumi have access to the karaoke set, as every crew member felt that the bullying scene was unsettling and may lead Rumi to quit the role. And somehow the crew distracted Rumi long enough for the scene to be finished.[5]

Violence Mission arc

Rumi films a scene getting soaked in a man-made pond, and since it's February, it's freezing for her. But Kazutoyo calls for a retake since the drama is scheduled to be broadcast in spring. He didn't want her to show a freezing reaction while other cast members pitied her.[6]


  1. Skip Beat! Manga Series:Volume 31, Chapter 220, Page 27
  2. Skip Beat! Manga Series:Volume 21, Chapter 124, Page 11
  3. Skip Beat! Manga Series:Volume 22, Chapter 128, Page 15-16
  4. Skip Beat! Manga Series:Volume 22, Chapter 129, Page 12-13
  5. Skip Beat! Manga Series:Volume 23, Chapter 135, Page 25-27
  6. Skip Beat! Manga Series VizMedia (3-in-1 Edition): Volume 28, Chapter 164, Pages 14-15