Leaving someone's life without meaning to is gut-wrenching - but leaving without a goodbye is a stab straight through the soul. 6 years ago, two young boys dreamed of small dreams, had small goals, had no plans for the future but looked forward to what it has. They planned together-planned to spend their lifetime beside each other. But fate had other plans. Will Nut be able to pay for the goodbye he owed Hong, or will Hong close him off completely? Will Nut be able to relive the yesterday he erased from tomorrow, or will he spend tomorrow like yesterdays didn't exist?