It seems common for nations more prurient than Japan to either aggressively censor their releases, or restrict sales to minors To Love-ru being a good example of both , so perhaps Taiwanese fans can at least enjoy the manga free of any censorship, and doubtless the sticker is no impediment to many minors. Those unhappy with the amount of ero in this manga can always take solace in the mountain of erotic art which exists of sexy sage Horo. The government is soooo fucking stupid…. What they need to do is translate the light novels faster. Kadokawa Taiwan branch has these stickers that they paste on lots of their titles, for some reason.