Fan service 杀必死
(重定向自Fanservice)
Fan service(ファンサービス,fan sābisu), fanservice, or service cut(サービスカット,sābisu katto), is material in a work of fiction or in a fictional series which is intentionally added to please the audience. The term originated in anime and manga fandom but has been used in other mediums. It is about "servicing" the fan – giving the fans "exactly what they want." Fan service usually refers to "gratuitous titillation", but can also refer to intertextual references to other series or story and visual elements that audiences tend to desire.