Im still not really convinced of Hyogas good intention. I mean, even if we dismiss his proposition to Xeno on page 7 (im not sure if that was meant as a theoretical "this could happen when they talk" example from Kohaku, or if it was meant as in he really said that), you cant just assume him to be a good guy now.
Also: WTF is that heart-arrow from Kohaku to Suika? Yes, yes, it most likely means "considering eachother as family / sisters since they come from the same tribe" or something like that, but still kinda suspicous. Especially when the other hearts-arrows are all about romantic feelings, Kohaku having no heart-link to the others from her village, and the author intentionally didnt use a friendship-arrow like he did with Senku und Taiju.