Sorry my bad. Those are the original Sakura ganbanru covers. The UDON covers censored the bloomer shots since most likely when common people see those in the comic book stores, will say she's showing off her panties which is not the case. Since bloomers are P.E. shorts. The Sakura doujin's done by Masahiko Nakihara are also up in my gallery.

Yep those are doujin's done Masahiko Nakihara himself. It's the continuity of Sakura Ganbanru manga, what happened after she graduated. Those are the ONLY sample images I've gotten.