met a jerk on the train and fell in love

Eren needs to find a job in order to pay off his bills. He and mikasa now live on themselves for a month and they are having a hard time saving money for their apartment. Armin, Eren's friend proposes a solution. Eren can work in the bakery of Armin's grandfather and gain enough money to pay off their rent. The only problem is that Eren has to travel with the train every morning, since the bakery isn't very close by. That's when he meets a mysterious man who also have to travel with the train every morning. One day, Eren decides to talk to the man, whose name is Levi.