Raifukyū

Raifukyū (ライフ球,Raifukyū) is an orb that is implanted at birth to shinobi in the Periodic Clan. After Implanted the Raifukyū is implanted, its begings to absorbs as much Potential Energy the User can withhold. Depending on the how much she or he can absorb will determine their status. The Raifukyū has no limits on its own but when implanted into a shinobi's body with the users chakra and blood, then it creates limits that the user should never be able to pass unless given additional life force or chakra. An example of this would be Hiroshi surpassing his brothers limits.