Youko's birthday was on September 3rd, and Aki's birthday was on September 9th.

Edit:

Corrected months (comment #2350215).

BrokenEagle98 said:

Youko's birthday was on August 3rd, and Aki's birthday was on August 9th.

I think you meant September 3rd and September 9th.

zenjamibu said:

I think you meant September 3rd and September 9th.

Right, thanks for the point out. I corrected the opening comment.

Keizoku skinship is always the best

Must save Jouko-chan *grabs high power water gun, blasts the enemy, saves Jouko, hets hugs*