Doujindesutvbokunokaasandebokunosuk

A plausible segmentation:

doujin desu t v bokuno kaasan de bokuno suk

But t v is odd — could be a mis-typed or mis-OCR’d to (と, meaning “and”) or TV as in television.

Another attempt:

doujin desu to, bokuno kaasan de, bokuno suk(i)
= “It’s a doujin, and with my mother, and my …”

But suk at the end likely truncates suki (like). doujindesutvbokunokaasandebokunosuk

More natural guess:

Doujin desu. TV, bokuno kaasan, de bokuno suki na …
“It’s a doujin. TV, my mother, and my favorite …”

Still feels off.

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Could be a Japanese sentence typed without spaces:

doujin desu. T.V. bokuno kaasan de bokuno suki na X
But T.V. might be a name/initials. A plausible segmentation:

Or:
Doujin desu. T, V, bokuno kaasan de bokuno suki na…
(Still unlikely)

Another try — reading backward:
suk could be Sukatto (スカッと) or Sukebe (スケベ) but here likely “suki” missing ‘i’.

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Most likely correct split:

Doujin desu. T.V. bokuno kaasan de bokuno suki na …
→ But T.V. could be a typo for to (と) and V could be no (の).

Let me test:
doujindesu t v bokuno kaasan
If t v = to (と) + maybe V = wa? No. doujin desu t v bokuno kaasan de bokuno suk

Could be:
Doujin desu. To, bokuno kaasan de, bokuno suki na …
(“It’s a doujin. And, with my mother, my favorite …”)

Or a famous line from a specific doujin?

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Once you clarify, I’d be glad to write a proper, accurate, and useful long-form article.