Realizing that the incense sticks are the key to time travel, Sun Woo follows his brother's clues to find the nine remaining incense sticks.

It's Christmas 2012, and Sun Woo surprises his mother and his best friend with a gift and a secret. His actions in the past begin to affect his present and his memory.

Now with his brother happily married and alive, Sun Woo must face the consequences of no longer having Min Young by his side.