Naruto: Pure Pathfinder!
These mystical beans, grown only in carefully hidden locations in the world, allow a being to recover a small part of expended chakra energy almost instanteously.
Each bean can restore a certain amount of chakra points to the character, according to the chart below
Given their rarity and ability to turn the tide of a battle, the beans can be quite expensive
Eating a Senzu bean is a standard action (like drinking a potion) but does not provoke an attack of opportunity.
(insert cost table here)