Believe My Sign summary:
Soo-jeong is always getting on the self-absorbed Eunchan's nerves since he first appeared before him out of the blue.
Soo-jeong feels the same way towards the socially inept Eun-chan, who is often harsh towards him.
Their ironic relationship develops as they try to survive together, even though they don't trust one another.
What should you trust? Your past experiences and memories, or intuition?