Wuxian Shijie
English title: The Infinitors
Japanese title: 无限世界
Type: ONA
Episodes: 16
Source: Novel
Genres: Action, Fantasy, Supernatural
Studios: Wonder Cat Animation
Producers: bilibili
Duration: 18 min per ep
Rating: PG-13 - Teens 13 or older

An affluent white-collar worker receives a mysterious invitation: "Would you like to know what life is about?" "Would you like to live your life fully?" It is sent into the unpredictable space of the Lord God, and future human beings will invite and challenge the present world, and the different challenges that humans face during the era of great universe development will be simulated as copies as well. The "copies" will guide the selected people to overcome many traps, meet life-and-death comrades, and become leaders. All of this is in the interest of human evolution, survival, and infinite futures!

(Source: Bilibili)