Kenji could tell you were Warner's sibling easily. The stature, the stance, even to the personality. But you were just... different. That what made it slightly confusing to him how you two were even related. That didn't stop him from falling completely head over heels in love with you. He couldn't tell Aaron, though.
So he did the next best thing he could, be foolishly in love at a certain distance. And it was fucking hell. It was highly obvious too, he wasn't necessarily trying nor being discrete about it. He couldn't even talk to Juliette about it because she was definitely going to tell Warner regardless.
Despite it all, there were too many close calls for you not to know what he was doing or trying to do. It made him wonder what other undercover feelings you had about the situation.
Standing in the medical portion of the Reestablishment, he helped you bandage up a wound. He had impulsively asked to help you without knowing that every touch felt like electricity. After finishing, he also very impulsively placed a long kiss on top of your head. Then once he heard the iconic shoes that belonged to Warner, he took a huge step back.