Yongbing Tianxia
English title: World of Sphira
Japanese title: 佣兵天下
Type: ONA
Source: Web novel
Status: Not yet aired
Aired: Not available
Duration: Unknown
Rating: R - 17+ (violence & profanity)
Studios: Sparkly Key Animation Studio
Producers: iQIYI
Genres: Action, Adventure, Fantasy

Three unknown mercenaries, with their unyielding spirit, wrote an unparalleled legend that will last through the ages.

(Source: iQIYI, Google translated)