It looks like he is upset because of him beeing useless. He also yells to Medaka and she punches him. It seems he's joining Ajimu's side, but nothing official. But i would like this kind of Plot Development Zenkichi Childish Idiot
That's a nice advancement in my opinion. I wanted Zenkichi to rebel! Akune became a true leader, as we saw in the last arc and a strong character, while zenkichi just like always is a loser, i want to see him yell and cry like the Pussy Boy he is and rebel
When he rebels, I sense much laughter when loses. Zen-chan can't defeat Medaka-chan. Kumagawa? Sure. Kikaijima? Yeah. Akune? Give him time. Medaka? Impossible. Still. Rebel with Ajimu, Zen-chan! Make a fan or two happy.
I won't say something like that. Who knows what ability Najimi would give him. Still he would be weaker than Medaka because of her beeing the strongest in the universe, but he would be stronger than anyone else!