〔予約〕BLUE GIANT MOMENTU 7の高価買取価格

The ISBN 9784098638536 corresponds to "BLUE GIANT MOMENTUM" Volume 7, which is part of the "BLUE GIANT" manga series created by Shinichi Ishizuka. This series focuses on a young saxophonist named Dai Miyamoto who is on a quest to become a world-class jazz musician.
If you're looking for more information about this particular volume or the series in general—such as plot details, characters, or themes—feel free to ask!