- Voice Actor (CV)
- Haruka Tomatsu
- Gender
- Female
- Age
- 17
- Birthday
- September 6
- Role
- Protagonist
- Identity
- A third-year student in Class 3 at Aoba High School, serving as class representative while actively competing on the girls' volleyball team
Personality
relentlessly competitive
tsundere
hardworking
fiercely proud
Rena Kariu is widely recognized as one of Aoba High School's standout students, relentlessly pursuing excellence in both academics and volleyball. Her fierce competitive drive and strong sense of pride make her a formidable presence, yet they also leave her vulnerable to bouts of jealousy and self-doubt. Through her deepening bonds with Shinta Umizaki and Chizuru Hiyo, a gentler and more candid side of her gradually emerges—one that learns to embrace imperfection and genuinely treasure the friendships she once took for granted.