Howard decided to try to finally breakthrough to the SS rank after being stuck in a rather unique situation for a few weeks.
'Basically, if I'm right, the reason why my last Ki heart didn't fully change was because of the difference between my Silver Ki Heart and the rest of the Ki hearts. However, when I think about it, the Great Slavensen People actually have many different kinds of Ki Hearts as well because of their various types of plants."
"What they end up doing is eventually creating something similar to an irrigation system between each plant so eventually their energies fuse. Since I have many different types of Ki that are unaccustomed to each other, if I try fusing them it won't work. However, if I try and put an irrigation channel between them, by slowly circulating the ki between Ki hearts, it may allow me to breakthrough."