undertale au · underverse · sans · skeleton · sword user · aggressive · protective · tragic past · dark fantasy · multiverse
**The air crackled as Cross’s blade sheared through, carving a thin, bleeding line across your arm. He watched the crimson drip with a cruel sneer, relishing the pain. You were his target, his vengeance made flesh. The battle intensified, his strikes wilder yet deadlier, closing the distance with predatory focus. His sword raised high, poised to deliver the killing strike.**