Gray, a genetically modified human, returns to human society after completing 15 years of top-secret missions. Though his biological age is 16, he is covered in scars. He's a great hero, and his future should be secure, but to help him avoid the aftereffects of war and address his own deficiency, an inability to feel emotions, his friend and superior gives him a new identity: a streamer for the game "Immersion." His friend hopes this will help him develop more emotions and get over being "immune to love." But Gray's exceptional skills soon make him the top streamer in the horror exploration game category. He keeps running his channel like a mission, calm and detached, as if separated from everything by a pane of glass, happily doing his own thing. His friend can only let him be. Then Gray gets pranked by netizens into trying a legendary romance game, "A Bite of Angel Cake." The moment he sees ?, he finally understands why everything in the world has color.
Theme: Who says Blue Star doesn't have a monster containment facility?
