Pokémon: Mewtwo—Prologue to Awakening
Mewtwo: Kakusei e no Prologue · ミュウツー ~覚醒への序章[プロローグ]～
Synopsis
The original story is set before Mewtwo meets Satoshi and his friends in the upcoming film's storyline. It will focus on Mewtwo's history, goals, and how it became the strongest Pokémon.
Studios: OLM
Source: VIDEO_GAME