Spring Fever In Episode 7 Jae Gyu is revealed

Jae Gyu is revealed to be the child’s uncle, not his biological father. However, he raised his nephew from a very young age, acting as a father figure throughout his life. Because of this, fans often refer to Jae Gyu as his “technical father,” even though they are not related by and Yi-joon later helped care for infant Han-gyul and supported Jae-gyu’s education. But the reason for their separation remains undisclosed.