City of Madrid (Madrid, center to Spain and country's capital). Manu is a 28 years old boy and he continues living with his parents Satur, a retired catering service director, and Tina, a seller of technology equipment. Working as a mediocre youtuber promoting his mother's equipment, Manu goes to a comic-con for declaring to his Internet's love interest, with horrible consequences: not only the girl rejects him, but a cosplayer named Toadman hits him, making hurt in one hand. When Satur takes his son to the hospital, they two meet a nurse named Amanda, a beauty and free-spirited girl for that Manu falls in love from the first moment. However, the things complicate more than expected when Manu learns that Amanda practices polyamory, having love relations at the same time with Claudia (a transgender girl who works as costumer in a TV channel), Álex (a full of himself and athletic model who obsessively thinks that the agencies only want him by his body), and too with Esteban and Marta (a married couple with liberal ideals in an attempt to break the classics concepts of love and education for their two children). Completely unfamiliar with the modern ways to love of the 21st century and taking them by a lustful people whose pretend their unleashed sexual desire as new-age love, Satur convinces Manu to use his comic-con's disguise (a variant of Red Power Ranger) to turn him in the Ranger of Love, a macho who defends the classic way despising the LGTBI's collective and all the terms associated to it. At the same time that Ranger of Love turns viral in Internet making him famous for despising of Amanda and the rest, Manu tries to seduce her to be the only one in her life. According the plan works and one by one all the relations fail (Claudia's loses the money lent by Amanda to open together a fashion store, Álex is discovered being unfaithful to another girl and having a Sexual Transmision Disease, and Marta's intolerance for that her children watch Walt Disney movies causes the final break-up), Manu starts to have regrets about his intentions, but Satur presses him to continue to the end, specially when a famous TV show offers him an interview to earn much money. Manu accepts with the condition to leave Ranger of Love after the interview, but then happens a double trouble: Claudia discovers Manu as Ranger of Love, and this night Amanda visits Manu in his house for finding that the things are more different that she thought.