Quick Transmigration- Operation: Teaching the Villain

Hong Yu is an optimistic person.

Even if he has to work on several part-time jobs to pay an huge debt left by his deceased parents, even if this debt has such high interests that it just keeps increasing no matter how hard he tries to save his earnings, even if the ones responsible to collect the money are some scary looking guys, even with all of this... He is still an optimistic person.

This is because Hong Yu has a dream he wishes to accomplish.

He believes that, one day, he will be able to pay all of the debt and start studying at an university, to become a great teacher. The kind of teacher that marks a student's life. The kind of teacher that helps to develop the young generation's character. The kind of teacher that makes difference.

But then, he died.

Before his soul could vanish from the living realm, he is approached by a system. The system's goal is to nurture the Ultimate Teacher, and, luckily, Hong Yu fits the requisites. And so begins his journey through different worlds in this vast multiuniverse.

His task? Take a Great Villain of each world as a student, and teach him to become a better person.

It was all going alright but... how did it end like this?!

Great Villain: I can only be a better person with you by my side.