Mark Fischbach is a very well known, very popular Junior in high school. He's in many different clubs and sports and is liked by all his teachers. He is extremely funny, outgoing, and happy. All the guys want to be him, and all the girls want him (as well as some of the boys) however, Mark just doesn't date anybody. He'd rather wait until he found somebody he actually likes. Jack is a shy, green haired introvert who moved to America a few years ago. He's only a sophomore and nobody knows much about him except that he is Irish and extremely smart. No one ever sees him anywhere other than school, and even then he is always tired with bags under his eyes. Many have wondered what secrets he is hiding, but few will ever find out what they are. What happens when these two run into each other?