On a moonlit night, Akira Masaki finds herself in a magical world where wizards and humans coexist. Every year, they must face an enormous, deadly moon that attacks the planet. Their only hope lies with the Wizards of the Sage, appointed to fight the supernatural threat. But Akira soon discovers she wasn't summoned by chance—she was chosen to lead them in battle.

It's July 1, 2020. Mizuha, a high school second-year, is having the worst seventeenth birthday ever. She's missing her chance to get close to the older student she admires, and her parents didn't even remember that it's her birthday. Worst of all, there's a new and unknown infectious disease making the rounds, so all her club tournaments and school trips have been canceled. She's convinced that she'll never have the dazzling youth that she's always dreamed of... but then her childhood friend, Mizuki, suddenly declares himself a candidate to be her boyfriend. This is a school youth story about four childhood friends who grew up like family, one being the heroine, Nishino Mizuha, and the four boys she grew up with whom she sees as family.

Yuke, a red mage, angrily declares that he's leaving Thunder Pike, the A-rank party he's been with for five years, because he's fed up with being insulted and ridiculed by the other members. While searching for a new party, he runs into his former students Marina, Silk, and Rain, and decides to join their party, Clover. Encouraged by their admiration of him as their teacher, Yuke leads them in completing several quests that show off his own extraordinary magic and skills while bringing out the girls' abilities to their fullest. Then, through an "adventure broadcast" by an artifact known as Camelot, Clover becomes well-known throughout society. The party's dream is to conquer Achromatic Darkness, the most challenging dungeon of all, but as they take on other dungeons in hopes of eventually achieving that goal, they gradually become entangled in chaos that threatens the whole world...

Hana lives on the small island of Tonakijima, with a population of 600, and loves reading to the island's children. Mizuki, the president of the school's broadcasting club, notices Hana's talent for engaging others through her storytelling and invites her to join the club. As Hana embarks on this new journey, she experiences many "firsts" with the broadcasting club members, deepening her love for reading even more.