Under the capital city of Tokyo, Japan, there exists a large, vast, and unknown world known as Underground. There, people known as Elemental Users exist; people who have the ability to control the elements: Fire, Water, Lightning, Magnetism, Freeze, etc. Meet Rumina Asagi and his best friend Ginnosuke Isuzu, two average high school freshmen who reside in Tokyo. When they meet Gravity User, Chelsea Rorec, and the Miko of Life, Ruri Sarasa, their whole lives change into one big adventure.

Xie Kanhua was about to be executed in the Shanglin Celestial Palace. When Su Baiyi was rescuing him, the Shanglin Celestial Palace disintegrated, and Su Baiyi was taken away by Su Jian, the Demon Lord who had voluntarily confined himself in the secluded prison for twenty years. Then the Hero Conference of Xuanwei Town is held again, Bai Jile lures Divine Official Xue, the second-best martial artist in the world to participate, plunging the martial arts world into chaos. In order to save the injured Nangong Xi'er, Su Baiyi went to the North Kunlun with Su Jian to pay a visit to Su Suomo, the ancestor of the Su family, while Yuling and Feng Zuojun respectively headed to Qingcheng Mountain and the Demon Town to learn martial arts. Under the latent tension, the Yingzhou Immortal Island reappeared. The invaders from the island issued a provocation to the martial artists, saying that those who submit will prosper, while those who resist will perish...

Taka (technically Tamahome) and Miaka are now happily married and only six months before their new family would be born, but an obsessed girl named Mayo would do anything to make Taka hers. She enters the world of the Four Gods, determined to win Taka's heart and be the new priestess.

The daily life of high school student Naoto Watari revolves around his little sister Suzushiro. As their parents passed away two years prior, the siblings have been passed from one relative to another, resulting in Naoto taking the most responsibility for her. Although things have not been easy for the two, Naoto is now content with living at their aunt's place. This newfound peace is suddenly turned on its head when Satsuki Tachibana enrolls at Naoto's school. The two used to be good friends, but after Satsuki completely destroyed his family's garden, she disappeared from Naoto's life. Despite what happened, Satsuki seems to be making advances toward Naoto now that they have reconnected. Coupled with other people around him that harbor secrets, Naoto's desire for an idyllic life may be at jeopardy.