산이
In April 2013, San E ended his contract with JYP Entertainment, saying that he was leaving on good terms. That June, he joined hip hop label, Brand New Music, home to his Overclass crew mate, Verbal Jint. San E achieved his first #1 hit on the Gaon Digital Chart with the song, "Story of Someone I Know," from the album "'Not' Based on the True Story." His next three singles, "Where Did You Sleep?" (feat. Verbal Jint and Swings), "Break-Up Dinner" (feat. Sanchez of Phantom), and "What's Wrong With Me" (feat. Kang Min Hee), all reached the top ten of the Gaon Digital Chart. San E's success continued with the single "A Midsummer Night's Sweetness," a collaboration with Raina (of After School). The song was an instant hit and achieved #1 on ten music charts shortly after its debut. The song went on to win awards that year at the Gaon Chart K-Pop Awards, the MelOn Music Awards, and the Seoul Music Awards. His next single, "Body Language" (featuring Bumkey), was also a #1 hit, topping both the Gaon Digital Chart and seven Korean real-time music charts shortly after its release, despite its 19+ rating. In June 2017, San E was featured in Hyoyeon's single "Wannabe". San E was also the rap mentor for KBS2's survival show, .