- Birth Name: Ohashi Mako (大橋真子)
- Nickname: Mako-chan (まこちゃん)
- Birthdate: May 24, 2004
- Birthplace: Tokyo, Japan
- Hobbies: Cleaning, throwing things out, cat lover, makeup, collecting cosmetics
- Specialties: Braiding quickly, having dexterous hands, doing makeup and nails
- Bands / Groups:
- She had her official debut as a ninth generation Kenkyuusei member on December 31, 2018 at the SKE48 theater.
- Her favorite colors are black and pink.
- Her future dreams are to become a selected member of SKE48, to be within the top ten in an AKB48 general election, and to be active in television and magazines.
- Her favorite foods are her mom's cabbage rolls, chocolate, and ice cream.
- Her favorite words are "arigatou" (ありがとう) and "oishii" (おいしい).
- Her message is "I will do my best with the momentum to overtake my seniors!" (先輩方についていけるように、追い越す勢いで頑張ります！)