ATLAS and CMS have discovered Higgs boson in 2012, which was the last missing piece in Standard Model. After the discovery, particle physicists look for any hint of Beyond the Standard Model, so-called “New Physics". There are various reasons to expect that the Standard Model is an incomplete theory and the New Physics should appear. This talk will focus on the introduction of particle physics based on the accelerator and more than 30-year journey of discovery for the LHC including recent results.