Touching all the fans in Japan, adapted from a true story, the legendary game series "FINALFANTASY" jumps into the live-action movie stage for the first time! The workaholic father Iwata Akatsuki (played by Yoshida Kotaro) is reserved and taciturn. He works day and night to support his family and neglects his son Mitsuo (played by Sakaguchi Kentaro). Mitsuo, who lacks his father's care, remembers that the only time he really communicated with him was when they played the video game "FINALFANTASYIII" together one night in his childhood. One day, Akatsuki suddenly resigned and retired for no reason, which confused his family. In order to find out the reason behind it and reconcile, Mitsuo decided to start the "Father of Light" plan! He first recommended his father to play the multiplayer online RPG game "FINALFANTASYXIV", and then joined the game as a mysterious female player Maidy, trained him to be a master, and led him and a group of online players to overcome all the difficulties! Akatsuki, who was addicted to the game, gradually became happy, and even teamed up with Mitsuo to fight the ultimate boss, and revealed the secret buried in his heart...