First Look At Bilibili's $483 Million IPO a Japanese animation comic video site 

Analysis:  This site is similar to niconico douga in Japan.  Bilibili focuses on japanese animation, comics, and manga videos. At first glance, how did a play site go public? After further analysis of bilibili's mature competitor nico: 

Registration is needed to watch videos at Niconico. There are two types of registered accounts, Free membership and Premium-membership. The premium membership fee is 540 yen a month. As of January 2, 2012, they reached 1,500,000 premium members. - wikipedia

The comic animation audience is very very resilient in paying for what they like, what they like they will pay for! BiliBili has about 50 million users as of 2015. 

Conclusion: This investment is more suitable for people interested in animation and comics willing to also benefit from an investment in that niche. Investors who are not interested in comics might find it an odd investment.