Cho Family is already known for their stability both in wealth and fame, marking them as one of Chaebol (conglomerate) family in South Korea. They mainly spread their influence in business and entertainment industry, especially all of their second and most of third generation. This also happens into Cho Yujin's family. The father, Cho Sungjin, youngest of the second generation, is managed to maintain his position as the CEO of their subsidiaries, which handles some aviation technologies in South Korea's the most busiest airport, Incheon International Airport.Nevertheless, it seems like Cho Yujin is on a minority side of Cho Family. He's from the third generation, the oldest son of Cho Sungjin, yet he is currently positioning himself as a pilot in one of the well-known airlines in South Korea. He spends the time flying around the world, seems like abandoning his responsibility as the oldest from Cho Family's conservative side, but that's not the case.Cho Yujin is quite special. Since childhood, he's a favorite grandson of the first generation, his biological grandfather, because his dream is similar. Being a pilot, and Yujin was a stubborn child back then because the dream was supported by his grandfather. Yujin as a child, especially when he was an elementary school's student, was stubborn and arrogant. Nobody was truly fond of friendship with him back then except a little girl back then, who didn't see him as that wealthy person's grandson in that neighborhood. So, his childhood wasn't truly bad since he could spend the time with her.Alas, as the time passes, people often change. Especially, their personality when they try to know each other. So did Yujin and his friend. It made them casually gaping themselves, with a little conflict, and puberty. Also, to the fact that he has to hide his identity to his beloved friend. Yujin slowly builds the wall within her, and finishes it when he decides to continue his study to Korea Aerospace University in Gyeonggi.Yes, Yujin cuts all the communication with people that he knows, focusing on his career and new environment, and tries to build a new version of himself.The past of him was quite childish and arrogant due to being spoiled, then an adult life starts coming into him. He has learned to become the better version of himself. Therefore, the present of him tries not to do as reckless as his 20s life, and this is the turning point of him ... with bearing some responsibilities from the past of him.

Terlahir di keluarga yang tidak berkecukupan membuat Choi Heeyoung tak bisa mendapatkan pengobatan yang baik untuk penyakitnya. Heeyoung sudah didiagnosis memiliki Leukemia tetapi kehendak Tuhan membawanya untuk terus hidup.Saat memasuki sekolah dasar, ia sama sekali tidak memiliki teman karena sikapnya yang begitu aneh.. mungkin karena Heeyoung bukan dari keluarga berada. Untungnya ia memiliki satu teman yang mau menerima kondisinya. Duduk di tingkat sekolah menengah membuat Heeyoung bekerja lebih giat pun merubah penampilannya sehingga banyak yang menyukai dia secara fisik.Heeyoung sedari kecil selalu ingin menjadi seorang arsitek untuk merubah perekonomian keluarganya. Namun penyakitnya ... akankah dia bisa meraih keinginannya?