~COMPLETED~ Jack has found out Mark's biggest secret. Mark is terrified; his secret is in the hands of his biggest enemy, or rather, his biggest crush. Jack makes an offer. A special favor, and he won't tell the school his secret. Thing is, Mark doesn't know what this favor is going to be. It could be easy, or knowing Jack, it could be a terrifying experience. Mark has one month to decide; risk the favor and no one know his secret, or deny the offer and everyone finds out. Mark is trapped. And it is the biggest boy trap of all time.

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.