> Choi Siwon (37 yo) is a young successful entrepreneur. The handsome man is a single parent with a son named Henry (15 yo). The handsome man was single for more than 5 years because he was reluctant to get involved with a woman who always wanted to drain his wealth, like his ex wife. Henry grew up to be a cheerful teen.

> Kim Yesung (33 yo) is a famous cafe singer. The beautiful man has an adopted son whom he raised from infant with his partner Choi Sungjoon. When the handsome man died in a car accident, Donghae was 13 yo. Currently Donghae is 16 yo, he is a kind and independent teen.