In the US you definitely can have written policies regarding relationships between personnel. I just pulled ours up, and, again, we're a Fortune 100 company that is considered to be very conservative with its legal interpretations (to the point of competitively kneecapping itself by holding...
Yeah, that was weird.
I interpreted it as the mangaka didn't do a great job of drawing the lighter lines you see drawn when they intend to show someone making multiple gestures in one frame, like waving their arms back and forth.