The primary reason why "Why Does the Handsome Man and Xiao Xi Only Have OAV?" is a popular topic is due to the unique combination of elements it brings together: the appeal of hentai, a genre of adult anime, and the intriguing premise of a handsome man and Xiao Xi, a character who only engages in OAVs. Hentai, known for its explicit content, has a dedicated fanbase that appreciates its artistic and narrative qualities. The character Xiao Xi, who is depicted as having a preference for OAVs, adds a layer of intrigue and curiosity, as viewers wonder about the reasons behind this character's choices.

The popularity of hentai in the United States can be attributed to several factors. According to a report by Statista, the global anime market size was valued at approximately $17.2 billion in 2020, with the United States being one of the largest markets. This indicates a significant interest in anime, which often includes hentai. Additionally, hentai's accessibility through online platforms has made it easier for fans to consume and share this content. The anonymity of online interactions also contributes to the genre's popularity, as it allows individuals to explore their interests without fear of judgment.

Furthermore, the unique narrative elements in "Why Does the Handsome Man and Xiao Xi Only Have OAV?" contribute to its appeal. The story's focus on Xiao Xi's character development and the exploration of her motivations behind her preference for OAVs adds depth to the genre. This departure from the typical hentai formula, which often focuses solely on explicit content, has resonated with viewers who appreciate more complex storytelling.

Data from a survey conducted by Pornhub in 2019 revealed that hentai was the third most searched term for anime on the platform, indicating a significant interest in the genre. This aligns with the broader trend of anime and hentai's growing popularity in the United States. The intersection of hentai with other genres, such as romance and fantasy, further expands its appeal to a wider audience.

In conclusion, the popularity of "Why Does the Handsome Man and Xiao Xi Only Have OAV?" can be attributed to the unique combination of hentai's appeal, the intriguing premise of Xiao Xi's character, and the broader trend of anime and hentai's popularity in the United States. The genre's accessibility, the depth of storytelling, and the growing anime market all contribute to its appeal.