[Ereri/Riren AU] In a futuristic society, everyone's finding their soul mates. Eren Jaeger is falling behind that trend. You're born with half of a birthmark, your destined soul mate having the other half. Once you find that soul mate, your second half of the birthmark will appear, symbolizing you're taken. What happens if you don't find them in time? [Featured in the official Wattpad Fanfic Attack on Titan Fanfiction Reading List!] I do not own anything / characters from SnK, nor do I own the fan art!