Five drops of essence blood; that was all that the First King had in reserve, and the only thing that could alleviate the side effects under certain special circumstances. Taking a drop of essence blood when his sanity was on the brink would suppress the madness in his mind, acting almost like a sedative. However, this method was only a temporary solution and could lead to increasingly severe side effects. After all, consuming essence blood almost consistently resulted in a loss of sanity.
Though it could enhance the First King's strength, it was undoubtedly a deadly poison. Once the user could no longer suppress the side effects, all the previously accumulated disadvantages would burst forth simultaneously, putting him in a life-threatening situation. The First King was aware of all these, yet he still chose to use it.
