A world-ending crisis came without warning, and the whole world instantly fell into chaos and despair. When human civilization is in danger, a mysterious prophecy emerges: after June, everything will end.
In order to save the world, an ordinary boy unexpectedly takes on a mission and forms a team with partners with different personalities. Among them are brave and fearless warriors, extremely intelligent scholars, and girls with mysterious powers. Everyone embarks on a journey full of unknowns and dangers, traveling through deserted cities, strange forests and mysterious ruins, looking for key clues to solve the crisis.
As the June deadline approaches, they not only have to face numerous dangers from the outside world, but also resist the fear and confusion inside. And when the final truth was revealed, Alvin was shocked to realize that behind this world-saving adventure, there was actually a shocking secret about love and sacrifice...
