Kun Tun Tianxia Zhi Zhang Men Guilai
English title: The All-devouring Whale: Homecoming
Japanese title: 鲲吞天下之掌门归来
Alternative titles: Tensei Soushu no Hadou-tan: Subete wo Nomikomu Sakana to Haiagaru, 転生宗主の覇道譚 ～すべてを呑み込むサカナと這い上がる～
Type: ONA
Source: Manga
Episodes: 12
Status: Finished Airing
Aired: May 1, 2025 to Jul 11, 2025
Duration: 20 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Big Firebird Culture
Producers: bilibili
Genres: Action, Fantasy

Fan Lingxiao, a gifted spirit pet master, was ambushed in the A-level sect promotion competition and devoured by his own spirit pet whale, Kun. When he woke up, he found himself reincarnated into a young man named "Liu Fengmang" who is imprisoned in the White Mansion. 

His sect, Lingxiao Pavilion, was also in dire straits. In order to find out the truth about the backlash of the spirit Kun and revive his sect, Fan Lingxiao takes his existing spirit pets and embarks on a new adventure with Gu Ling, Cheng Xi, and Yue Tong.

(Source: Bilibili, translated)