Tbh I would wait for Jinchu 2 to come out in about 1- 2 months time or so (Dont quote me on that it's just my guess) and then I would pull for Han since he's a really good character for people around your level (Roshi's true potential comes out if youre like level 85+ and have a lot of power and all the talents unlocked) But yea I would at least spend some seals on Kage as well since the Kage ninjas are really good but more importantly I'd focus on getting power since if you have a lot of power you'll do better in sage and matsuri and intern get more seals, etc. hope this helpps!