- Voice Actor (CV)
- Tomokazu Sugita
- Gender
- Male
- Birthday
- December 7
- Role
- Supporting
- Identity
- A fifth-grade elementary student who has been childhood friends with protagonist Kanade Takahashi since early childhood, and the designated heir to his family's long-established obstetrics and gynecology clinic
Personality
Unexpectedly mature appearance
Deadpan eccentric
Calm yet unpredictable
Paranormal enthusiast
Despite being a mere fifth grader, Ginjirou Sannomiya carries an uncannily adult-like appearance that sets him apart from his peers, often seen wearing glasses that further reinforce his oddly sophisticated look. What makes him truly memorable is his ability to deliver bizarre, perverted, or outright absurd remarks with a completely straight face, along with his peculiar fixation on women's underwear. Outside of school, he devotes himself to reading occult and paranormal magazines, firmly convinced that extraterrestrial life is real. As for his future, he remains torn between two equally unlikely ambitions: taking over his family's obstetrics clinic or joining NASA to explore the cosmos.