The Yuzuki family, which consists of four brothers, lost their parents two years ago. Hayato, the eldest son, is a hard worker and the pillar of the family. Mikoto, the second son, is calm and collected, but he has a soft spot for his younger brother Minato, whom he adores and thinks is cute. Minato, the third son, is energetic and adores his brothers, but he is clumsy and awkward. Gakuto, the fourth son, is a studious and mature first-grader who is often referred to as a "wise man." The manga depicts the four brothers' daily lives as they navigate their family, school, and community.

Following a series of attacks that have left teachers and students alike sapped of their magic, headmistress Liza Quillyn decides to seal off the College, rendering it impossible to enter or leave the premises. As a result, Philomela Sargant is unable to comply with her grandmother Lizbeth's order to withdraw from the school. Trapped inside the College, Chise Hatori and her classmates begin to adjust to their novel and stressful circumstances. But as time goes on, Philomela's condition only gets worse—both mentally and physically. Meanwhile, details about the tragic past of Chise's roommate, Lucy Webster, continue to resurface. As Chise grapples with worries about her friends and with her evolving self, the identity of the mysterious magic-draining culprit plaguing the College may finally come to light.

After losing his leg as a newbie adventurer, he retired and returned to his hometown in the countryside. Doing things such as collecting medicinal herbs, exterminating magic beasts and wild beasts, and helping with the villagers' farm work, it's hard to decide whether to call our protagonist an adventurer or a handyman. And while doing these things his age quickly approached thirty. One day while searching the mountains for herbs, he discovered an abandoned child. Thinking that he couldn't just leave it, he took it home and raised it until his age approached forty. His now grown-up daughter had also wanted to become an adventurer, likely from growing up watching her father. Although her father had taught her the sword since she was young for self-defense, her talent at it was quite impressive. Thinking that it would be better for her not to be stuck out in the country for the rest of her life, our protagonist sent her to the adventurer's guild in the Capital. After another five years, the protagonist now in his forties is still acting as a pseudo-adventurer in the countryside, however, his daughter—now a distinguished S-Class adventurer—hasn't returned home even once yet...

Years ago, astronaut Byakuya left behind precious materials in the belief that his son, the scientifically-gifted Senkuu, would one day find them. In the present, the Kingdom of Science's Kohaku and Ginrou have infiltrated the harem of the Petrification Kingdom’s leader with the help of Amaryllis, a local girl. At first, their mission progresses without a hitch. Unfortunately, an error enacted by Kohaku and Ginrou leads Minister Ibara and the Island’s strongest warrior, Moz, to identify the intruding duo as enemies. Even worse, Moz tails Amaryllis when she returns to inform Senkuu of the news, discovering the scientist's secret hideout. However, Moz's agenda does not align with Ibara's—he wants to dethrone the minister and keep the petrification device for himself. If Senkuu plays his cards right, he could gain a powerful ally and win the war once and for all.