[Fuaku Yuu (Yufuck)] Ero Doujin Mitai Ni！

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.

Blowjob (フェラチオ, fellatio) is one of the most common sexual act tags in doujinshi. It covers oral sex performed on male characters. The artistic depiction varies from realistic to stylized, with many artists developing signature techniques for depicting the act. Common visual elements include drool, tongue detail, eye contact, and depth indicators. The tag appears across virtually all genres and is frequently paired with tags like 'ahegao,' 'big breasts,' and 'sole female.'

Ahegao (アヘ顔) refers to the exaggerated facial expression of ecstasy commonly depicted in hentai. The face is typically shown with rolled-back eyes, protruding tongue, and flushed skin. This visual trope has become iconic in adult manga and is used to indicate intense pleasure or overstimulation. The tag covers both subtle and extreme versions of the expression. It frequently appears alongside tags like 'big breasts,' 'nakadashi,' and 'multiple male.'