上原 ナナ
from How Heavy are the Dumbbells You Lift?
Height
167.00 cm
Weight
59.00 kg
Bust
79.00 cm
Hip
83.00 cm
Waist
62.00 cm
She is a kind person. Unlike Ayaka, she appears to like training and boxing. She is very intense about training, noted as being very spartan, like dropping a medicine ball on her sisters stomach.

How Heavy are the Dumbbells You Lift?
Sakura Hibiki is your average high school girl, with a voracious appetite. Noticing her clothes tightening in lieu of her slowly expanding waistline she decides to look into enrolling in the nearby gym. There she runs into a girl from her grade named Souryuuin Akemi. Akemi, who has a muscle fetish tries to get Hibiki to enroll in the gym despite its high ratio of macho men. Thankfully a beautiful trainer, Machio, appears and unknowingly convinces her to enroll and start her quest to a great body.

How Heavy are the Dumbbells You Lift? (Manga)
Sakura Hibiki is your average high school girl, with a voracious appetite. Noticing her clothes tightening in lieu of her slowly expanding waistline she decides to look into enrolling in the nearby gym. There she runs into a girl from her grade named Souryuuin Akemi. Akemi, who has a muscle fetish tries to get Hibiki to enroll in the gym despite its high ratio of macho men. Thankfully a beautiful trainer, Machio, appears and unknowingly convinces her to enroll and start her quest to a great body.