Umihara Kawase Shun 'zutto issho da ne...'
released 15th August, 1997 (publisher: Meiyoutei)
Umihara Kawase Shun 'zutto issho da ne...' (海腹川背・旬 「ずっといっしょだね…」, or Umihara Kawase Shun 'together forever...') is an artbook released by Umihara Kawase series character designer Toshinobu Kondo, through his doujin circle Meiyoutei, at Comic Market 52, held in August 1997. The book may also sometimes be referred to as the Umihara Kawase Shun Perfect Book.
This book, with 88 pages counting the covers, is full of illustrations from and related to Umihara Kawase Shun.