From the Overview:
HEARTS OF WULIN is a roleplaying game emulating long-form Chinese wuxia melodrama. It builds on Apocalypse World, a game created by Meguey and Vincent Baker. If you’ve played other Powered by the Apocalypse (PbtA) games you should find HEARTS OF WULIN easy to pick up. If you haven’t, you may find HEARTS OF WULIN operates a little differently than other roleplaying games.
In HEARTS OF WULIN, the player characters play potent heroes in a fantastic version of ancient China. PCs can do amazing things: fight expertly, balance on roof peaks, run along walls. But for all that skill and competence, the characters are undercut by their own hearts. Unrequited love, conflicting filial duty, loyalty to sworn friends—all these pull the characters in different directions. The PCs try to hold themselves together in order to live up to their heroic ideals. HEARTS OF WULIN doesn’t provide a specific setting. Your table will build that together—establishing the factions and places of your world. HEARTS OF WULIN offers a toolkit for telling these wuxia stories. You can draw on media touchstones like Crouching Tiger, Hidden Dragon; Hero; Iron Monkey; and The Untamed. There are books, online novels, comics, and more that offer other sources. But HEARTS OF WULIN, first and foremost, aims to emulate a particular kind of wuxia story.