Spiritual energy of each 7 chakras embodies each character. everyone holds chakra magic aligned to which chakra they represent and a special right eye that sees something that others don't. the more they align with their chakra, the more powerful they get. 

if all chakras are combined together, peace shall spread all over the realms for eternity. but the cost to achieve it, is a dire amount of all their chakra controlled in one person and launched in one go. it would leave the holders with no chakra left to even stand up or possibly almost die in the process.