Kayana Sahanaya Tirta or known as Kohaku always wanted to live in a simple life, he knows nothing about Phantom Beasts so does the Phantom Samsara. As an Indonesian college student in Warmadewata University is relaxing, being one of the top universities under the Nirvana Organization that operates in all regions of Indonesia and sanctioned by the United Nations. When he met a certain someone, he was getting wary due to his actions in getting rid of the Phantom Beasts... and soon becoming his friend until his fate changed when he discovered the existence of Phantom Beasts in this world.