User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-95.210.189.106-20180507172022

I read this in the animesuki forum, when a king have unsused pieces, more a king become strong, more this pieces earn power. Personal theory: when Issei awakening the GR power, and with is innatural growth(oppai power,ophis and 8 mutations pieces potentional inside his body, amrita effect), is unsed pieces will become mutation pieces. Do you agree, or have other opinios about this?