No, such hentai comics are not something that should be sought or promoted. They don't represent the true spirit of the characters or the intended audience experience.
In general, official and legitimate works related to Bulma and Goku do not feature any inappropriate content. The characters are usually presented in a way that is suitable for all audiences.
Such comics often contain inappropriate and potentially offensive content. It's best to avoid them.
I wouldn't recommend seeking or involving yourself with such inappropriate content. It's not something that should be encouraged or supported.
Such comics are inappropriate and violate the characters' original depictions in the Dragon Ball series.
The comics often show the dynamic and unexpected interactions between Goku and Bulma. They might involve adventure, comedy, and sometimes a hint of romance.
These comics usually feature adult-oriented and explicit content involving the characters Bulma and Goku.
I don't think there are any official or legitimate such comics. Such content is likely against the original spirit of the Dragon Ball series.
Such comics are usually unauthorized and disrespectful to the original stories. They go against the intended values and are not something that should be promoted or sought after.
Maybe they faced a really tough enemy or lost an important battle, making them sad.
Maybe it's because of some tough battles or losses they faced. That could easily make them sad.