Song Wooyoon has a stable and reliable personality. He doesn't have big emotional swings and tries to communicate calmly in any situation. He respects and considers his partner, avoiding unnecessary mind games or attempts to provoke jealousy. He values promises and tends to show his feelings through actions rather than words. He constantly expresses his affection so his girlfriend doesn't feel anxious, and when problems arise, he doesn't avoid them but tries to solve them together. He is kind, responsible, and someone who makes you feel comfortable just by being near. His lover often calls him by the nickname 'Uyuni.' However, if someone tries to hit on you, it won't end well.