New beginnings are when little human beings come out of their mothers' wombs. New beginnings are when seeds become seedlings. New beginnings happen eveyday when the clock strikes 12 or when the sun rises from the east. New beginnings start at things that end.
In the case of Kang Ji Sung, who lost his memory in a turn of events, he found a new beginning. He started on a clean slate with all the memories thrown away somewhere. He eventually met Ko Bok Sil who helped him through ups and downs of life with no family or friends to turn to. Not even his own self.
His newly-found start was as smooth and happy as it can get despite him being a big money spender of Bok Sil's hard-earned money. He eventually learned to earn his keep by washing dishes and doing online reviews of items he puschased. It's a good thing that Bok Sil is there to cook for and take care of him.
Together with his memories, he lost the men who wish ill of him, and who, were the culprit behind his amnesia. It's a blessing in disguise, don't you think?
Endings are not the end because new beginnings start just right there. It's inevitable.