Select any mission and in the battle preparation screen: 1. Go to "Power Up". 2. Select "Skill" then back out. 3. Select "Ninja Tools" and buy "Poison Kunai" then sell it. (You will receive 258 exp as Naruto and 300 exp as Rock Lee) 4. Repeat step 2 and 3 as many times you want.
Contributed By: njpm6.
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