Okai Asuna (岡井明日菜)
- Nicknames: Assuu (あっすー), Asunan (あすなん)
- Birthday: May 14,1996
- Birthplace: Saitama, Japan
- Height: About 142cm
- Zodiac: Taurus
- Blood type: A
- Special skill: Drawing, can ride 5 laps on sports ground with a unicycle
- H!P Member She Wants To Be Like: Goto Maki
- Favorite Food: Melon, Potato Chips
- Siblings: Chisato Okai (ºC-ute)
- Dislikes: Insects
- Favorite Food: Crab, melon
- Least Favorite Food: Eggplant, cauliflower
- Looks Up To: Niigaki Risa
Okai Asuna joined Hello! Project as a member of Hello! Pro Egg in June 2004 when she passed the auditions alongside thirty-two other girls.
- Eats bread for breakfast.
- Has a habit of referring to herself as “Asuna”.
- Her favorite spot is at the top of her two-floored bed.
- Hello! Pro Egg (2004-2011)