Agile methods have been largely used for so many years for a flexible software development process. To get the best results and eliminate unnecessary efforts, it is important for the development team to select the most appropriate methods and techniques. The fundamental core of an agile method should be well understood before deciding on which parts of the method to adopt. The quickest way to do so is understanding the Agile Manifesto. We have observed however that, in practice, agile practitioners do not dedicate the necessary attention to the manifesto and directly aim at a specific agile method or practice. This has led us to question the role of Agile Manifesto in tailored agile methods adoption. We carried out a systematic literature review to answer four research questions related to tailored agile method adoption i.e., the perception of the Agile Manifesto in adopting tailored agile methods, and what are the influence, relevance of the manifesto in meeting the team's problems, expectations and benefits.