Sean 'Jack' William McLouglin and his family have just moved to America. Jack is starting his Junior year in high school at a small school called RoseMare. As he makes new friends there is one boy in particular that catches Jacks eye, Mark Fischbach. But Marks life is full of dark secrets that he is keeping from everyone. But what if Jack can brake past Marks walls and save him from the Hell he is living.

two of the worlds most famous youtubers jacksepticeye and markiplier find themselves wrapped up in some pretty complicated situations, sean has to deal with heartbreak and mark has some pretty worrying things to face too. the pair work together to overcome these things, so through pain, passion and promises, septiplier occurs.