My head cannon is that Yuu will have something with blondie and go to college. A time skip will happen and Tsubaki and Yuu will meet again WHEN BOTH OF THEM HAVE AN APPROPRIATE AGE and fall in love. I have no problem with age gaps but I really hope this will happen when Tsubaki is an adult.
now I just want yuu to be with that blond guy now I can't with this age gap