The title you're asking about, Sobo to Boku ~Obaa-chan, Nanika Dechau yoo~
In summary: The piece you are looking for is likely the horror/surreal manga "Sobo to Boku" by Chiba Tetsuya. eng sobo to boku obaachan nanika dechau yo link
The series is part of a niche genre in Japanese adult media. It typically explores: The title you're asking about, Sobo to Boku
Direct Search: Try searching for these phrases directly in quotation marks or without, depending on the search engine or database you're using. This might lead you to a specific forum, wiki, or media entry. Similar phrasing appears in gag‑oriented series where a