http://forum.naruto.oasgames.com/en/forum.php?mod=viewthread&tid=21212&extra=page%3D1

This is *ied, try looking for an answer before asking for one. :lol

the best way to increase power is to focus on gaining power rather than exp some ways are to do the ninja exam daily for the magatama, saving money to upgrade equipment, and get three stars on the instances so you can sweep them for awakening material, and do survival trial for the cultivating runes you receive

First of all u need to click red "power up" *on under your BP, near your stamina and go through each one in your team and see what you lack and then work on it.

Hello, welcome to the game.

When it comes to gaining power, as the post prior to me spoke about you'd want to check on the Power Up tab and check on just what you'd need work on. There's basic methods of gaining power that the game's tutorial already helps with you. That's being Equipment Upgrades, Ninja Tools, and Magatama.

Along the way as you level you'll unlock more features that'll increase your power. These are things like Eight Inner Gates, Summons, and Mysterious Cave.

Along with all of these, there are other, less spoken things that help you with power. Such as joining a group. Yes, being a part of a group is a huge benefit of strength. You're able to increase your stats using a Skill Tutor located inside your group's base. Various summons also augment your strength by quite a lot. Lastly, if I haven't missed anything. Doing TI and getting rare ninja tools greatly increase your strength as well.