[Marialite (Hisagi)] Mannequin ni Natta Kanojo-tachi ~Fukushuu Hen~ [English] =White Symphony=

Schoolgirl uniform (セーラー服, sailor fuku / 制服, seifuku) is a costume tag that's deeply embedded in Japanese manga and doujinshi culture. It refers to the iconic Japanese school uniforms — either the sailor-style (sailor fuku) or blazer-style (seifuku). This tag is significant because school settings are a common backdrop for many genres, from romance to fantasy. The uniform itself has aesthetic appeal in illustration, and artists often use it as a visual shorthand for youth and innocence. It frequently appears alongside 'lolicon,' 'sole female,' and various school-themed parody tags.

Yuri (百合) refers to female-female romantic or sexual content. Unlike 'lesbian' which implies real-world orientation, yuri is a genre term specific to Japanese media. The content ranges from soft romantic tension to explicit sexual scenes. Yuri has its own rich ecosystem of tropes and character dynamics. Related tags include 'futanari,' ' ffm threesome,' and 'sole female.'

Masturbation (オナニー, onanii) is a sexual act tag covering solo sexual activity. In doujinshi, this includes both male and female masturbation scenes. The tag covers a range from casual self-pleasure to elaborate scenarios. It frequently appears alongside 'sex toys,' 'ahegao,' and 'sole female.'