Run Wild: Sa Ye novel volume 4 was written by Wu Zhe with illustrations by Ding Yue Rong.

The university entrance exams are looming on the horizon, and with even his deadbeat biological father now out of the picture, Jiang Cheng knows he has to score exceptionally if he's going to make a stable future for himself. Luckily, he can count on his boyfriend to support him through the grueling gauntlet of studying and practice exams - he just wishes Gu Fei would study for his own sake, too.

Gu Fei is smarter and more talented than he likes anyone to see, and Jiang Cheng is eager to see him shine... But Gu Fei has his own reasons for hiding, and even the happiness he's found with Jiang Cheng might not be enough to change his mind.