Underneath the bright city lights lies a bloodied arena bursting with frantic screams and roars. Strong men engage in boxing matches for money, while their audience desperately hopes that their chosen participants will bring them fortune. For the young rising star Mignon, there is only one place that is an escape from the chaos of the ring and his tough life. Mysterious underground doctor Oh Young-One offers his services to injured fighters, and the wide-eyed Mignon finds solace in his quiet infirmary. Young-One is gentle and caring, always tending to Mignon's wounds that mainly come from the cruel world beyond the boxing ring. However, the doctor hides a taboo secret about himself. In a rare moment of carelessness, he exposes it to Mignon, putting his life in immediate danger. Even though Young-One warns Mignon to keep his distance in order to protect him, Mignon remains stubborn and refuses to abandon the one person who makes him feel as though he truly matters.

The story is about Yun Che, the main character, who is cornered by his enemies at Cloud's End Cliff on the Azure Cloud Continent.

Rebel organization Reunion has reduced the city of Chernobog to ashes and despair. That is only the beginning of its uprising against the nations prejudiced toward those infected with the highly contagious and deadly disease Oripathy. Now, the rebels have set their sights on Lungmen—a prosperous city infamous for its inhumane treatment of the sick. After witnessing Reunion destroy her homeland, Chief Ch'en of the Lungmen Guard Department's Special Inspection Unit leads her squad to defend her city. Meanwhile, Amiya, the Doctor, and the rest of the advanced pharmaceutical company Rhodes Island continue to oppose Reunion on all fronts. However, they soon find themselves in a deadlock against a powerful enemy: FrostNova, a Reunion commander whose fearsome wintry powers cause anyone unfortunate enough to stand in her way to slowly perish in frost.

After an accident that killed his father and left his sister with a disability, Shun Tokinoya's mental duress has led to him refraining from online gaming. Now a model high school student who feels remorse over his past lifestyle, Shun works part-time in the cybercafe owned by his childhood friend Nozomi Inatsuki in order to support his family. Despite this, an incident pushes Shun back into the world of online gaming. Following the sudden retirement of all players of FOX ONE—Nozomi's father’s esports team—Shun learns that the Inatsuki family is in severe debt. In order to repay the money they owe, Shun reluctantly agrees to participate in an online game tournament: Xaxerion Championship. Joined by their classmate Akito Sendou, the three of them scout for talented players to rebuild the team. Although they are lucky to find two promising additions to FOX ONE, it is too soon to celebrate: if Shun does not let go of his guilty conscience, the makeshift team stands no chance at winning the tournament.