The service name DouDoujin is a combination of two Japanese words: "堂々: DouDou" and "同⼈: Doujin." "堂々: DouDou" translates to “confidently, boldly, openly” in English. On the other hand, "同⼈: Doujin" is derived from the combination of "同: Same" and "⼈: Person," meaning "a gathering of like-minded individuals." "同⼈活動: Doujin Activity" refers to creative activities by people with shared interests or values, a concept similar to “fandom” in English.

In Japan, fan-made derivative works of popular titles are sold at events like Comic Market, but this exists in a legal gray area, as it occurs with tacit approval but lacks clear copyright permissions. Some derivative works may also risk damaging the original creator's worldview, which gives "同⼈活動: Doujin Activity" a reputation as a shadowy, hidden practice in contrast to the boldness implied by "堂々: DouDou."

At DouDoujin, we aim to create an environment where derivative works can be done “堂々,” with formal permission from the original creators and clear copyright management. By doing so, we facilitate collaborative synergies between fan creators, voice actors, translators, Vtubers, and other surrounding creators. This allows the original works to grow as IPs (intellectual properties) that foster active communities.