Operation Cupid!

Ain, a novelist, wrote a highschool romance novel titled "Forever". This novel talks about the tale of two highschool students, Leia and Elvis. The both of them are childhood friends, and stood by each other's side for the worst and for the better. As they reached highschool, Elvis realized his feelings for Leia, and so, their love odyssey began there. Ain finished writing the novel, and submitted it to his superior at work. Afterwards, he drifted to sleep. When he woke up, he found himself in a highschool boy's body. After being bewildered for several minutes, he finally connected the dots, and realized that he got transmigrated into his novel. A system window suddenly appeared infront of him, saying that if he could guide the two into the supposed relationship in the future, Ain could be transported back to his real world. So, Ain tried multiple attempts in executing his plan. But things did not go quite smoothly. Oddly enough, the two always argued without a proper moment of peace and apology. Could Ain achieve his goal of matchmaking the two students together? Can he really go back to his real world if the goal is cleared?