The fourth film of .

Can one embark on a journey to the West without extraordinary abilities? A little pig demon decides to leave Langlang Mountain and team up with a toad demon, a weasel demon, and a gorilla monster to complete their pilgrimage. What trials will the little demons encounter on their westward journey? Will they ultimately be able to achieve their wishes and live the lives they desire?

A semi autobiography of Tezuka Osamu. Son-Gokuu is a monkey who was born from a stone and is endowed with magical powers. He gets carried away and goes on a rampage until at last Buddha confines him within Mt. Gogyo. Saved by Sanzohoshi, Son-Gokuu accompanies him on a journey to India. But on their way, monsters lie in wait for them.

Tokaku Azuma has just transferred to the elite Myoujou Academy, a private girls' boarding school. But there's a catch: she, along with 11 of her fellow students in Class Black, is an assassin taking part in the challenge to kill their sweet-natured classmate, Haru Ichinose. Whoever succeeds will be granted their deepest desire, no matter the difficulty or cost. However, each assassin only gets one chance; if they fail to kill her, they will be expelled. Despite the extraordinary reward, Tokaku decides to take a different course of action. Though Haru is her target, the young assassin soon finds herself drawn to the very girl she is supposed to kill. With the entire class out for Haru, Tokaku refuses to let her friend die, vowing to protect her from a growing bloodlust. [Written by MAL Rewrite]