It’s kind of impossible to be with him since he’s ordered to kill her and if he doesn’t he is at risk to be killed himself. I hope Hayate finally gets a chance to shine in 6
Hayate aint the only one in the "hasnt had their time to shine yet and therefore seems irrelevant and useless" boat. Characters like Eliot and such could just be left out of 6 and noone would even notice it lol