(Futaket 31) [Shikotsubo] Crim-kun wa Shijutsu-chuu (Ishuzoku Reviewers)

Shotacon (ショタコン) refers to content featuring young or young-appearing male characters. The term originates from 'Shotaro complex' (after the character Shotaro from Tetsujin 28-go). In doujinshi, this tag indicates the presence of youthful male characters in suggestive or explicit scenarios. Content ranges from innocent to explicit and is a significant demographic category. The tag is the male counterpart to 'lolicon' and often appears in yaoi (male-male) content or in heterosexual scenarios with older female partners.

Futanari (ふたなり) refers to characters with both male and female sexual characteristics — typically female-presenting characters with a penis. This is a significant genre in hentai with its own dedicated audience. The tag covers a wide range from characters with both sets of genitalia to characters who are essentially female with male genitalia. Artistic treatment varies from realistic to highly stylized. Related tags include 'males only' (for futanari-only content) and 'yuri.'

BBM (Big Beautiful Woman) refers to content featuring plus-sized or heavier female characters. This tag celebrates body diversity in doujinshi and covers a range from slightly chubby to very large body types. The tag has a dedicated following and is used as a body-type preference filter.