BTOB's Yook Sungjae is a number 6 fan of Red Velvet and he's bias is Park Soo Young or popularly known as Red Velvet Joy. He's only number 6 in the list of Red Velvet's Fanboys since he was always busy with his own prior job as an idol, but he's the number 1 fan when it comes to Park Soo Young. His fanboy moments started during the debut of Red Velvet and due to Joy's refreshing image she caught the male idols attention as well as his HEART. ----- Date Started: May 29, 2018 Date Ended: November 28, 2019