Wo Shi Da Shenxian
English title: I Am A Great God
Japanese title: 我是大神仙
Type: ONA
Episodes: 16
Source: Web manga
Genres: Action, Fantasy
Studios: CG Year
Producers: Tencent Animation & Comics, Tencent Penguin Pictures, iDreamSky
Duration: 19 min per ep
Rating: PG-13 - Teens 13 or older

At the age of seven, the very short-lived child prodigy, who was growing too fast, returned to the immortal world to prevent his abnormal growing. From then on, with his gifted brain and wisdom he obtained from earth, he walked in path immortality to became the legendary god to return his normal life...

(Source: MU)