Sonic and Shadow are brothers. Shadow never really cared for Sonic . He is always annoyed by him. Because of this he made a big mistake. Shadow wished Sonic would die and never exsist again. Now Sonic is dieing slowly. Shadow realized this is wrong and he has to fix his mistake.
Will Shadow undo his wish?
Will Sonic survive?
Well read to find out.
Sonic AU / Omegaverse
Living together, married and are each other's mates, yet they've never met each other. Their families have arranged this marriage against their will and to make matters worse: Shadow isn't even gay.