海にいるマッチョな男子たちが全裸になりオナニーや射精、友達とのキスシーンなどをまとめています！ 前作「海のマッチョ男子図鑑」は水着のイラストが多めでしたが、今回は全裸のイラストがメインでR18要素多めです。 新規イラスト121枚のイラスト集で、ファイルはPDFになります。 It is a compilation of many scenes of macho boys at sea, completely naked, masturbating, ejaculating, and kissing their friends! The previous "Macho Men's Illustrated Book of the Sea" had more illustrations of swimsuits, but this time, the main illustrations are completely naked and have more R18 elements. This is a collection of 121 new illustrations, and the file is in PDF format.