In October 2005, he applied and was accepted to Inha University through its early decision plans, which allows exceptional students to bypass the Korean equivalent of SATs at age 7, being the youngest university student ever. During his interview with Inha University, Song demonstrated his understanding of the Schrödinger equation, a partial differential equation which is of central importance to quantum mechanics theory. Considering his young age, Inha University formed a committee of seven, named "Song Yoo-Geun Committee," including professors and his mother, who gave him private lessons instead of the usual classroom style lectures. Inha University also provided Song with his own lab, and a residence space, so that he can stay with his parents, at his parents' request. His first semester GPA was 3.8/4.5, approximately equivalent to a B+. However, In December 2008, mere two years after he has begun his studies, he decided to withdraw from Inha University, since he felt "difficult to study within the framework that the professor has arbitrarily decided for themselves." He said, "I want to study string theory or big bang theory, but I cannot do that as an undergraduate student."Of the 140 credits required for graduation, Song received 53 credits from Inha University, and 113 credits from an on-line degree institution. On this, Inha University said, that it "respects Song's decisions." To fulfill total credit hours to apply for a graduate school, he achieved Bachelor's degree using Credit Bank System.