Marta confesses to Javi that something happened with Doctor Frutos. Javi thinks that Marta is a brat and she isn't capable of maintaining a normal relationship. To prove him wrong, Marta accepts a challenge: to live the most routinely life possible. For a couple of days, of course.

Javi agrees to meet up with his dad, who abandoned him and his brother when they were little. Javi has promised himself not to end up like him. Meanwhile, Marta feels guilty for having lied to Javi and doesn't know how to fix it. Javi finally finds out about her lie and has a huge crisis.

Marta and Javi experience their own particular war. They decide to divide the house in two halves. Seeing as living like this is impossible, they decide to make a bet to see who gets to keep the house. The one who knows more about the other wins.