Dadao Duxing Zhi Die Long Bian
English title: Walking the Way All Alone
Japanese title: 大道独行之蝶龙变
Type: ONA
Source: Web novel
Status: Not yet aired
Aired: Not available
Duration: Unknown
Studios: Wonder Cat Animation
Producers: bilibili
Genres: Action, Drama, Fantasy

Luo Li has been trapped in the soulless Yinzhou Continent since he was a child and became the number one killer of Tianjue Killing Hall. His father, Master Ciyun, sacrificed himself to buy Luo Li a chance to escape from Yinzhou and go to Zhongtian Main World to find the true way to cultivate immortality.

(Source: Bilibili, translated)

Adaptation based on a Chinese web novel of the same name, written by Wu Wai Jiangshan (雾外江山).