the story goes:
2,3,5,10,13,14,4,7,6,8,1,12,11,9.
japanilainen numerointi, amerikkalainen järjestys.
but the climax of the series is episode 13-14 so they put it at the end so people won't get bored of the show after that. if you don't intend to watch it twice, watch it in this order, i would have watched it 1,2,3,4,...etc and then 2,3,5,10,...etc but there are other anime i have to watch after this one