Story of The Twito-Galaxy:

Twito he's A Robot Hero that stuck in the far away Galaxy To survive the Monsters that start to Dominate the Galaxy.

Twito have a Drone that follows him and protect him from the Monsters that trying to kill him during his survivable journey in the Galaxy.

for Twito to complete his survival journey he needs to kill all monsters and collect the KEY (Don't forget to look for the KEY when you kill a monster) for keeping his survival journey.