Yahagi Yukina is a member of SKE48's Team KII.
- Hobbies: Going to buffets
- Special skill: Cardiopulmonary resuscitation (CPR), doing a sexy dance
- Future Ambition: To deliver beautiful teeth
- Admired member: Matsui Jurina and Souda Sarina
- Favorite food: Bread, honey and dumplings
- Favorite words: If you can dream, you can do it
- Message to fans: "I want to do my best to be recognized as member of SKE48."
- Currently in university, studying to be a dentist.
- She is the first 8th generation member to make senbatsu. She was chosen as a senbatsu member for SKE48's 21st single Igai ni Mango
- Made her debut as an under with Team S
- Older sister of Yahagi Moeka
AKB48 Senbatsu Elections
- SKE48 Kenkyuusei → Team KII
- Joined SKE48 as a Kenkyuusei on November 19, 2016
- Promoted to Team KII on October 5, 2017 (SKE48's 9th Anniversary)
- RS5 (Seishun Girls)
- Kinjirareta Futari
- Fushidara na Natsu
- KII5 (0Start)
- Kimi ni Tsuite (under) (after being promoted to Team KII)
Yahagi Yukina (December 2016)
Yahagi Yukina (2016)