Yesterday: Falling in love... again

If you discovered a scientific method to modify the past, would you use it to recover the love of your life despite putting your health at risk?

Juan Carlos is a student in the last semester of the industrial physical engineering career. Together with his two classmates and lifelong friends, Eduardo and Enrique, he develops a methodology to use the power of the mind in something that on the printed paper of his thesis only seems fiction. That thesis is enough to title them all three, however, it can be an alternative to scientifically understand the behavior of time. It can even be a solution to remedy the romantic tragedy that Juan Carlos experiences when passing a sentimental bitter drink that marks him for life. In the end we have a romance novel whose happiness depends on science fiction.