LINE Games Corporation announced that Exos Heroes has updated a series of new contents to welcome this summer, including âMemorial Sagaâ. . âMemorial Sagaâ is a storytelling content that can be played from the perspective of a specific hero in the world of Exos Heroes. In this update, the story about âRamge, the Prince of North von Frostyâ will be open so please check out. . Along with âMemorial Sagaâ a new summer season Quantum Raid âSummer Vacationâ