At a certain trading company, saleswoman Futaba Igarashi has managed to hold her respectable job for almost two years thanks to the guidance of her senior coworker—Harumi Takeda. However, due to Igarashi's short stature, Takeda often teases her and treats her like a kid, leaving Igarashi constantly annoyed by his antics. Despite this, Igarashi notices Takeda's reliability as he is always ready to help whenever something at their workplace goes awry. As Igarashi and Takeda spend more time together, their relationship soon develops further than simply being coworkers at the office.

Having reached the pinnacle of human potential, Varvatos was so powerful that the rest of humankind began calling him the Demon Lord, both fearing and respecting his overwhelming influence. As a result, he felt alienated from his fellow humans, leading him to desire true companionship—an equal he could call a friend. Hoping his fate will change in his next life, Varvatos decides to start anew and reincarnates three thousand years later as Ard Meteor, the son of a seemingly ordinary couple in a rural town. Unfortunately, he realizes that even after weakening himself, his strength still overshadows everyone in this era. Moreover, his lack of social skills bars him from achieving his goal of making friends. But worst of all, the repercussions of suddenly abandoning his former position have begun to bite him back in some of the most unimaginable ways possible.

Brought up in a conflict-ridden environment, child soldier Jonathan Jonah Mar hates weapons and those who deal them. But when Koko Hekmatyar, an international arms dealer, takes on Jonah as one of her bodyguards, he has little choice but to take up arms. Along with Koko's other bodyguards, composed mostly of former special-ops soldiers, Jonah is now tasked with protecting Koko and her overly idealistic goal of world peace from the countless dangers that come from her line of work. Jormungand follows Koko, Jonah, and the rest of crew as they travel the world selling weapons under the international shipping company HCLI. As Koko's work is illegal under international law, she is forced to constantly sidestep both local and international authorities while doing business with armies, private militaries, and militias. With the CIA always hot on her trail, and assassins around every corner, Jonah and the crew must guard Koko and her dream of world peace with their lives or die trying.

Otonokizaka High School has been saved! Despite having to withdraw from the Love Live!, the efforts of μ's were able to garner enough interest in their school to prevent it from being shut down. What more, following the conclusion of the first, a second Love Live! is announced, this time on an even larger stage than before. Given a chance for redemption, the nine girls come together once more to sing their hearts out and claim victory. However, with the end of the school year approaching, the graduation of the third years draws near. As they attempt to reach the top of the Love Live!, they must also consider their future and choose what path the group will take. Though the question of whether to continue without the third years or disband weighs heavily on the minds of its members, μ's must quickly come to an answer with graduation right around the corner. Love Live! School Idol Project 2nd Season continues the story of the girls as they laugh, cry, sing, and dance in their journey to determine the future of their group and conquer the Love Live! in their last chance to win with all nine girls together.