My Girlfriend is a Little Devil

Bei Xiuzhi was an ordinary college student yet became a Japanese senior high school student named Kitahara Hidetsugu due to an electric shock. Having another chance to experience a romantic campus life, he has only one wish: To focus on his studies and lead the life he wants! However, just as he began to pursue his dream, a short girl called Fukuzawa Fuyumi keeps making trouble for him. What should Hidetsugu do with this little devil?