Grand Blue: From Human to Scumbag

How should I put it? I have finished reading it now and have seen Going to Okinawa. I have not had any contact with Busujima Island for the time being. If I came here for the book about Busujima Island, I guess there are more than 50 pictures before and there are none at all. Ah, some places are I wanted to change some things, but it didn't seem to be correct, so I stuck to the original work, but overall it's still watchable, and it fits the theme very well. Being a scumbag, the sense of participation related to the protagonist group is slightly more than that of scumbag groups, which is 30% or 40% more.

I really want to ask where the plot of Busujima-sama is? [Almost crying] [Almost crying]