New game x Male reader

(Y/n) is at the bottom of the barrel as he can't get a job, not even a part-time job as he barely graduated high school with all his credits. All he has a great understanding of is weapons like swords, maces, staffs, guns, and every thing in between. Luckily, (Y/n) is cousins with Toyama Rin who works at eagle jump, and she decides to ask the director of the company to hire him as a weapons consultant. Meaning that the staff would ask questions about weapons for their game. Along the way, (Y/n) might fall in love with the staff of the character design.