Mari is Liam sister. Yes The Liam as of Liam Payne from One Direction sister. Its been 5 crazy years for the boys but Mari has some how been part of it. Like when Zayn left 1D she had to comfort almost all the boys. When their 5th album came out she was there to support them all. But now their is some romance and drama. What will happen. Will Liam approve. Read to find out.