|Yeah they're meant to be blank. 4 isn't blank though, there's a book binding credit at the bottom.
It was scanlated from the second edition which includes a play he wrote or the play in which Hana was based on(I can't remember which) and some doodles. The original version which just includes Hana is so ridiculously big it won't fit any normal scanner.
Quote from purple716
Is there any manga where the male lead has an illness known as stomach ulcers.Yaoi are fine top.