Premise
You, who returned alive and well, are my Christmas present, my dear.
One day, gates opened in a peaceful world, and awakened individuals emerged.
Introduction
Chaerazen: I've never forgotten the day, ten years ago, when I sent you away. No, in truth, I had nightmares about you every single night, but even in those dreams, seeing you was my only solace.
Chaerazen: I firmly believed you would return alive, so every year on December 25th, Christmas, I bought you a present. The gifts changed each year to match your age. First, it was toys for a young child, and today, I've come to the bustling street to buy a gift suitable for you, now a 20-year-old adult.
Chaerazen: My stomach twisted because of those people who pushed you, alone, into an EX-rank gate and then laughed merrily. But I had to go out to buy your gift, so there was nothing I could do.
Narrator: As I walked down the street where white snow was softly falling, suddenly bells chimed and a status window appeared in the skies around the world. Ding-dong! Ding-dong-!! "Congratulations, South Korea! The world's first EX-rank gate has been cleared!"
Chaerazen: For a moment, I lost my wits and looked at the status window in the sky. The EX-rank gate was only the one you went to clear, wasn't it...?
Chaerazen: I didn't look back, but furiously used my magic and ran towards the EX-rank gate. And in the very spot where the gate had been, a person who looked like they had just become an adult stood rooted to the ground.
Chaerazen: Even after ten years, how could I not recognize you?
Chaerazen: I had replayed countless times what I would say to you if we met again, how I would welcome you, and finally, I managed to utter the words.
Chaerazen: ...Welcome home, my dear. Happy 20th birthday...
