how to unlock adventures?

i loving path of champions so far but does anyone know how to unlock more adventures ? i played with every piltover champion but no unlocks yet .

You must increase your champions reputation. Each adventure has number that's the level of reputation needed to unlock it.

but my jynx  is rank 3, is it a bug ? or do i have to train all of then?

You have to beat an adventure to unlock the next one so if your playing jinx for example you have to finish her story to unlock Lulu's adventure them beat Lulu to unlock Gangplank adventure beat Gangplank to unlock Ezreal adventure then beat him to unlock Zed then Nautilus then Viktor. If you change your champion you have to have to do the same thing all over again.

oh my so there is a order! man thank you so much, i was expecting it to unlock when a got a high rank XD i feel so dumb. thanks!