[Yamitsuki Honpo (Wise Speak)] Bijin Jokyoushi Tamamo-chan - Beautiful Female Tacher Tamamo-chan. (Fate/Extra) [Chinese] [Digital]

Sole female indicates that a gallery features exactly one female character throughout the entire work. This tag is important for readers who prefer focused, intimate scenarios rather than group dynamics or harems. It doesn't imply anything about the number of male partners — a sole female gallery can feature one male partner (sole male) or multiple. The tag helps distinguish between different relationship dynamics and is commonly paired with tags like 'sole male' for one-on-one scenarios or 'multiple male' for gangbang-type content. In terms of narrative structure, sole female works often develop a single relationship or encounter in depth rather than juggling multiple characters.

Glasses (メガネ, megane) is a costume/accessory tag with a dedicated following in doujinshi. Characters wearing glasses — whether thin-framed, thick-rimmed, or sports glasses — appeal to a specific aesthetic preference. The tag covers all types of eyewear and is often associated with character archetypes like the 'meganekko' (glasses girl). Artists use glasses to add visual interest and character personality. The tag appears across all genres and frequently co-occurs with 'sole female,' 'big breasts,' and 'stockings.'

Impregnation (孕ませ) is a fetish tag focused on the act of getting a character pregnant. This often involves detailed internal views (x-ray) showing ejaculation and fertilization. The tag is closely related to 'nakadashi' and 'pregnancy' but specifically focuses on the conception moment rather than the resulting pregnancy. It's a significant fetish category with its own dedicated audience.