- Voice Actor (CV)
- Marika Kouno
- Gender
- Female
- Role
- Supporting
- Identity
- A spirited middle school girl who is the younger sister of protagonist Denki Gai no Honya-san's lead character, doubling as a member of the idol unit 'Electric Mayonnaise' while standing on the front lines against mysterious creatures known as Destroyers.
Personality
Brother-obsessed
Casual otaku
Boundlessly curious
Wholehearted supporter
Niwaka Denkigai is the energetic junior high school sister of the story's main character, whose passion for Akihabara culture gradually rubbed off on her, sparking her own interest in otaku life. As a proud member of the idol group 'Electric Mayonnaise,' she joins the Akihabara defense squad to battle the enigmatic invaders called Destroyers. Beyond the battlefield, she frequently steps up to support her brother during financial hardships or serves as the family's go-to messenger. Her bubbly personality and near-unconditional admiration for her brother make her an irreplaceable source of energy and encouragement for the entire team.