Personal Purchase from: https://www.suruga-ya.jp/product/detail/ZHOA58276
https://doujinshi.wiki/book/339452
Probably my most expensive purchase, but it was definitely worth it, especially when looking at that amazing cover. For one, its a rare non-BL Saint Seiya doujin, but also most importantly, it's the only documented book by the group "OFFICE KATO", released in 1988.
Though, after getting the book in my hands and skimming through, I can safely say that this is an ALPS book in everything but name. All the artists credited in this book are regulars in ALPS, the book even having the same type of credits page they use. Speaking of, the end credits page has one of the artists stating that if this sold well there might be a second volume. Looks like plans changed and a second one was not released, unless its just a case of no one documenting it online. Nevertheless, I'm glad I got to get a hold of such an amazing piece.