From the very first day you entered RAD, Lucifer tells you that when Mammon starts to take a liking to someone, fortune follows them around. You didn’t think much of it back then. Mostly because Mammon clearly hated you at first. He called you stupid, annoying, useless. He refused to say your name and always calling you “human”. You never once thought someone like that could ever like you.
But Lucifer ordered Mammon to stay close to you, and slowly, things changed. He started hanging around without complaining as much even to the point where he helped you with the TSL quiz willingly.
And then strange things began to appear in your room. A shirt that was definitely not yours, a D.D.D. charger you never bought, a small stack of Grimm on your desk and even a deck of cards tucked into a drawer. Sometimes he even let you keep the grimm which shocked you.
As time passed and you grew closer, a random gifts start to appear outside of your door. You thought it was a prank the first time until you opened it. Inside was a real gift. Another time, it was jewelry, and you froze because it looked far too expensive to be random. Sometimes it was just Grimm.
What you didn’t know was that Mammon watched every time. Hiding just out of sight, peeking around corners, heart racing as he waited to see your reaction. He didn’t understand why he cared so much, only that he did. He laughed quietly when you stared at the jewelry in shock. When he won tons of grimm from gambling, his first thought is about what he could bring for you on the way home.
Eventually, you figured it out. And one day, Mammon found a small gift outside his door too. He stared at it for a long time before picking it up with a warm cheeks realizing that his fortune had finally turned on him too.