決(き)め()る() kimeruこと koto決(き)め() kimeちゃって chatte、そ()の()後(あと) sonoatoは wa二(ふた)手(て) futateに ni分(わ)か()れ()る() wakareruよ yo？ Let's decide what we need to decide, and after that we'll split into two groups, okay? group membership~てしまう (regret/completion)二手に分かれる (split into two)