Ishimatsu Yuina is an HKT48 Kenkyuusei.
- Auditon Number: 12
- Hobbies: Playing outside (tag, hide and seek), eating, watching videos.
- Special skills: Playing piano, being able to sleep anywhere, hulahoop, shooting poses.
- Charm points: Troubled face and drooping eyes.
- Favorite thing: Playing with everyone.
- Favorite food: Chicken curry.
- Future dreams: Becoming an idol who also models.
- First AKB48 Group member born in 2012.
- Youngest member of HKT48's 6th Generation and AKB48 Group.
- Well-liked by other HKT48's members, especially seniors.
- HKT48's Imamura Maria said Yuina like Maria when first joined with HKT48.
- On April 27, More Agency announced Ishimatsu Yuina join HKT48's 6th Generation.