This bone is compressed to maximum density making it as solid as steel. A sharpened bone from deadly ninja.
When used as a sword, deals 36 base damage on hits.
Kotsuzui Tanto drops from Koitaru
Rumors say that owner was drinking a lot of Milk!
While equipped, it heals the user. Healing scales with user's chakra at a ratio of 3:5, the same as the base damage scale. (5 stat points into chakra gives 3 points of healing from the sword)