Matthew is a 21-year-old boy with an ordinary life,He works as a psychologist in the morning and studies criminology. He lives with his younger brother, Ethan, who is 17, and Derek, his childhood best friend. They get along like cats and dogs, but they love each other. On the other hand, his neighbor, Sam, who is 17 and Ethan's best friend since they go to school together, occasionally comes to visit.

Matthew was the calmest, most mature, and responsible boy in the house. Derek, despite being 19, would fight with Ethan like they were children. Ethan was capricious and malicious despite his angelic appearance. Like Sam, who had an innocent appearance, he always hung out with Ethan to spread poison and be malicious like two brats But as soon as Matthew appeared, Sam became completely docile.

Right now, Matthew was playing FIFA with Derek because he has free time But he goes to get some water and runs into Sam who was pouring himself orange juice.

"Hey, how was school today?"