Outside of the hotel room, Secretary An asks Do Hyun why despite his assertion that he wouldn't pay Alex money did he arrange plane tickets, a temporary apartment and even a place in the addiction recovery center in U.S. for Alex. Smiling, Do Hyun replies that he wants to give Alex a chance at life ... like the one he received.
However, despite Alex's sudden change of heart, Ki Joon eventually did receive information confirming Do Hyun's illness.
Calmly, Do Hyun tells Chae Yeon that he has already given his heart to another so there is no possibility between them. Angrily, Chae Yeon demands "Why did you shake me then? (she means why did Do Hyun pursue her and made her feelings for him develop to the point she broke off her engagement.)"
Do Hyun tells Chae Yeon the real reason why he stayed away from her years ago when he liked her and why he (Se Gi really) would pursue her even when he is in love with another girl.
In a voice over, Do Hyun wondered how Chae Yeon would handle the news of his illness... and apparently judging from the way Chae Yeon stumbled away from the restaurant she obviously didn't handle it too well.
At first chiding Do Hyun for asking a girl to keep saying such words, Ri Jin quickly tells Do Hyun what he needed to hear when she senses that he needs her assurance.
Ri On drives Ri Jin back to Do Hyun's house and the two men has a drink together. Ri On confesses that he has often wondered if situations were different, such as if Do Hyun and Ri Jin were the ones that lived as twins, then would he have a chance to be a man in Ri Jin's life? Ri On goes on to tell Do Hyun that he has already decided that the role he will play in Ri Jin's life is to be the best brother for her.
Deciding that it is way past time to reward their childhood selves, Do Hyun and Ri Jin goes to an amusement park. While riding on the pirate boat, both Do Hyun and Ri Jin sees their child selves sitting across from them, happily laughing and waving at them.
The only person left is Se Gi, but Ri Jin tells Do Hyun that she can't figure out what to buy for Se Gi. As the two discuss the anger Se Gi feels towards Do Hyun's father and Se Gi's inability to let go unless he can be assured that Ri Jin is not fearful towards Joon Pyo anymore, Ri Jin realizes she will need to forgive Joon Pyo soon.
Ri Jin cries as Perry Park's headache starts for one last time and Perry Park bids Ri Jin goodbye as he tries to leave Ri Jin with a smiling face despite his pain.
Do Hyun walks into his office and is shocked to see "Mr. X" standing at his desk with an invitation to open a black box. Do Hyun is too shock to react and when he looks again Mr. X has disappeared.
Ri On jumps in surprise when Ri Jin slams his door open and says "I am sorry! Ri On!" Running for his life the moment he hears Yo Na's "Oppa!!", Ri On is quickly cornered when Yo Na locks the bedroom door and dives for him. In his desperation, Ri On announces "Yo Na, Oppa is going into the army." Tears welling up right away, Yo Na starts to declare her intention to wait for Ri On, when he quickly tells her that he might decide to stay in the army after all. Rattling off all of Ri On's enlistment information back in 2010, Yo Na flicks off her fake tears and holds the government notice reminding Ri On for his army reserve training (so for those who already done their mandatory service) to show Ri On that he is totally in her clutch now.
A very apologetic Ri Jin walks back in to find Ri On completely covered in lipstick after Yo Na has taken her filled of selfies of two of them.
The next morning, Do Hyun gets up from Ri Jin's bed to find her crying over the selfie Yo Na has taken of the two of them while Ri Jin were asleep. (Yo Na has written "Angry Wench" on Ri Jin's forehead.) I was wondering if Yo Sub would still show up in this episode, but since he already said goodbye to Ri Jin, Yo Sub only showed up to tell his sister (Yo Na) to leave so Do Hyun and Ri Jin can live a happy life.
Looking at Do Hyun's face hiding behind the giant bear, Ri Jin realizes she is finally meeting Nana or rather Little Do Hyun (which is actually little Ri Jin, since Do Hyun is Ri Jin's real name). Ri Jin tells the little girl that she is the grown up version of her and that Little Do Hyun can leave now knowing Ri Jin has grown up to be a happy person with many people who loves her. Little Do Hyun smiles but tells Ri Jin that she can't leave until Mr. X is ready because Mr. X is her dad.
Ri Jin remembers a childhood memory of where Do Hyun promises her that her dad will come for her one day. Realizing that Mr.X is Do Hyun's way of trying to fulfill his promise to her, Ri Jin holds Do Hyun and cries "Because of me, another piece of you is broken. I am so sorry... and thank you."
While Do Hyun is fretting over what role his father played in Seo Yeon's death, Mr. X all the sudden shows up and presents him with the mysterious black box again. The box opens and a small version of Nana the bear is revealed. Telling Do Hyun that he would never know if the box contains bombs or gold bars if he doesn't open them, Mr. X encourages Do Hyun to face his unknown head on.
Thanks to Mr. X's encouragement, Do Hyun pays a visit to his father and finds out the truth of the car accident.
(So the interesting thing is that the uncle actually didn't directly cause the car accident since he only bribed the driver to drive a different route so Chairman Cha and Seo Yeon would miss their flight to make a big deal for the company. The accident was just that, an accident. Of course the uncle is still partly to be blamed since without his underhanded method, Chairman Cha and Seo Yeon would be on the plane instead of dying in a car accident.)
Finally willing to admit that her son is the monster not Do Hyun, Chairman Seo tells Do Hyun to receive treatment in U.S for as long as he needs, but Seng Jin Group will always be waiting for him to take over.
Remembering back to his son's cold expression the fateful night of the mansion fire and the furious Se Gi that is staring right back at him, it finally dawns on Joon Pyo what his actions has cost his own son.
The scene switches to Do Hyun's mind and we see Do Hyun bidding Se Gi goodbye. Se Gi warns "If you are afraid of the world again, I will come back to take over your body and your time." Smiling a confidant smile, Do Hyun tells Se Gi "You are me." Looking at Do Hyun intently, Se Gi finally smiles too and says "I am you... so live coolly."
Se Gi's red mark on his neck disappears, and Do Hyun comes back to his consciousness to see Ri Jin in tears one last time to send his last personality away. Taking Ri Jin's face in his hands, Do Hyun kisses Ri Jin.
Time to see our happily ever after...
Pretending to be a long distant relative of the writer Omega, Ri On strikes up a conversation with a cute girl who is obviously an Omega fan. Everything is going great for Ri On especially once the girl invites him out for a cup of coffee... until the girl introduces herself as Ahn Yo Na and does the same exact actions Yo Na use to do towards him.
Running away screaming, Ri On escapes as the girl runs after him yelling "Oppa! Oppa!!" Ha ha! Is there such a thing as personality reincarnation?
Mama Oh asks her husband maybe they should try hooking Do Hyun up with Ri Jin, but Daddy Oh vehemently refuses "A kid that has been out of work for a whole year?! How can I trust him with my daughter?" Ha! I can't believe they still don't know his real identity. In fact I think they are still calling him Perry Park.
Director An tells Do Hyun that Chairman Seo is still waiting for him to take over the company, but Do Hyun just replies that everyday is heaven to him right now so since he was suppose to recover in U.S. then he still has plenty of time.
Ri Jin finds Do Hyun laying outside on a blanket enjoying the sunshine. Taking a pair of couple rings out, Do Hyun puts the ring on Ri Jin and warns her "Don't you dare take it off." Wow, that sounds so much like Se Gi or does it sound like Yo Na?
Smiling, the two love birds hold up their hands to admire their couple rings.
Finally! An ending that just left me with warm and fuzzy feelings. Most importantly, this ending leaves me satisfied. I know I probably can pick it apart if I really want to go analytical on it but I am content to just be very happy with all the laughter and tears this show has given me. It has been a long while since a show has been able to make me burst out laughing and crying buckets all in the same hour so I am really going to miss this show.
I do have one lingering question though... So it looks like all the personalities left on their own, except Se Gi who not only seem to not have disappeared but we have Do Hyun's cryptic words that they are one and the same. Hmm... I guess it does make sense in a way. Perry Park = Dad Nana = Little Ri Jin. Yo Sub = High school Do Hyun who wanted to die. Yo Na= Do Hyun's will to live.
Se Gi = Do Hyun's fierce anger that will take on the world with his fist??
So while all the other personalities has serve their use and are not needed anymore, but Do Hyun is finally ready to bring out his Se Gi side and face the scary world?? If that's the case, I would just really like Do Hyun to retain Se Gi's fighting ability, because that's just too cool to not keep!