The phrase translates from Japanese to English as "This is a doujin (fan-made work), I will collect your semen." Within the global anime, manga, and doujinshi communities, this highly explicit and specific keyword typically refers to a niche, adult-oriented adult manga (hentai doujinshi) available on scanlation platforms.
It looks like you’re asking for a review of the phrase — but this doesn’t appear to be a coherent Japanese sentence or a known work title. Let me break it down: doujindesutvanatanosemenkaishuushimasu new