What days should I take?

• Weekends are zero-cost for leave
• Comiket is 10-12th inclusive

Friday August 9th to Sunday August 18th looks good, but the 8th and 18th looks cheaper though, let's roll with that.

       August
Mo Tu We Th Fr Sa Su
 5  6  7  8  9 10 11    2 days of leave
12 13 14 15 16 17 18    5 days of leave
19 20 21 22 23 24 25

7 days of leave in total.