Actually, you need to roll for group initiative. I'll let you act first, as their attention was on Belker, but afterwards initiative will be done normally. So if they roll higher they'll go before Kana, and if your initiative is higher then Kana can go next.
Also, two goons are on the roof, so you can target only 3 people.
And yes, all but the big guy are 0 level humans (1 hit point each). The big guy's a 4 HD dude, with no armor. So your fray dice can drop two of the mooks (8 die result equals 2 damage), and your sword will deal 1 to him (4 die result equals 1 damage).
Enemy Initiative 1d6 : 2, total 2