[Kusuriyubi (Kuroyui)] オタク同士の友情は結婚しても成立するよね？ 〜元・女友達と不倫セックス〜

Big breasts (巨乳, kyonyu) is one of the most iconic body-type tags in doujinshi and manga. It refers to female characters with notably large, exaggerated breasts that often serve as a central visual element. Artists typically emphasize size, weight, jiggle physics, cleavage, and breast-focused activities like paizuri (titjobs) and breast play. This tag spans nearly every genre — from vanilla romance to hardcore fetish content. The artistic treatment varies widely: some artists favor realistic proportions while others push into exaggerated territory. Related body-type tags include 'huge breasts' for extreme cases, 'small breasts' for the opposite aesthetic, and 'paizuri' for breast-focused sexual acts. The tag often appears alongside 'sole female' and 'nakadashi' in heterosexual content.

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.'

Netorare (寝取られ, NTR) is a genre tag where one partner is 'taken' by another person, typically involving infidelity or cuckolding. The term literally means 'to have one's partner stolen.' NTR is a complex genre with its own tropes: the emotional anguish of the betrayed partner, the seduction/taking of the unfaithful partner, and the voyeuristic element. The genre ranges from dark drama to fetish content. Related tags include 'cheating,' 'mind break,' and 'dark skin.' NTR is one of the most polarizing tags in doujinshi — readers either love it or actively avoid it.