Kelvin, the battle junkie Summoner from another world, continues searching for powerful opponents even after becoming a Rank S adventurer and defeating the Demon Lord. He receives an invitation to Gaun, the Country of Beastkin, where two things are about to happen: a Naming Ceremony for him as a Rank S adventurer and the Beast King Festival. The former is good and all, but what really gets his blood pumping is the latter, which turns out to be a tournament hosted at the Gaun Mixed Fighting Arena, where all the greatest fighters from across the continent are expected to show up! As Kelvin and his companions continue making their way through the rounds, they encounter not only Goldiana’s sister disciple, but also a mysterious young girl who seems strangely similar to Sera. Who is she and what does she want? Come along for the ride as this black-clad Grim Reaper and his friends confront powerful foes one after another in the sixth volume of this epic journey!

After having fulfilled the requirements for his promotion to Rank S, Kelvin, the eccentric Summoner who transmigrated from another world, finds that a series of festivities are being prepared in his honor. To his surprise and delight, he learns that part of it involves a one-on-one practice round with Silvia, a Rank S adventurer nicknamed “Ice Princess.” Eagerly anticipating this match against a truly worthy opponent, he promptly dives into his training like never before. At the same time, his companions head off to a dungeon to procure a special high-ranked food ingredient for his sake, but a shocking encounter lies in wait! Come along for the ride as this black-clad battle junkie and his allies continue to make a name for themselves in the fourth volume of this epic journey!

As Kelvin, the battle junkie Summoner hailing from another world, continues his extraordinary exploits, Goddess Melfina finally returns to his side, finally having completed her artificial body. When she grants him her blessing, he gains the power to summon a Hero of his own...who wants to become his stepsister?! As Kelvin and his party grow stronger by the day, he receives a summons for his Rank S promotion exam. The contents of the exam involve saving an elven settlement from the threat of a terrible monster, but just how much is the militaristic nation of Trycen involved? The black-clad warrior and his allies smash through everything in their way as they dive full throttle into the third volume of this epic journey!

Following his transmigration, during which he bartered away his memories in exchange for rare and powerful skills, Kelvin is fully enjoying his new life as an adventurer. After making a name for himself in Parth, becoming the city’s most famous and respected adventurer along with his close-knit motley crew, he next sets his sights on Toraj, the Country of Water. But what should have been a peaceful visit to satiate his heartfelt cry of “I haven’t had a grain of rice since arriving in this world — I want some rice!!” was, of course, never fated to go smoothly. The unfortunate (or fortunate?) souls who just happened to catch the attention of this sarcastic, adventurous battle junkie are...none other than the Heroes of Deramis?! Join this black-clad warrior and his allies as they continue to make a name for themselves in the second volume of this epic journey!

“I just kept fighting powerful opponents and finally reached Rank S.” After saving the Village of Elves from the Trycenian invasion, Kelvin is approached by Leonhart Gaun, the king of Gaun, who starts off by saying that he acknowledges Kelvin as a Rank S adventurer. Soon after, Kelvin finds out that as part of the festivities held in honor of his promotion, he will have to fight a fellow Rank S adventurer, “Ice Princess” Sylvia. Despite having already reached the pinnacle of the adventuring world, this battle junkie continues to seek more power and new challenges, sharpening his claws in preparation for his upcoming encounter with true strength. Join this black-clad warrior for a stunning spectacle in this sixth volume of his epic journey!

After encountering Ange in Gaun, the Country of Beastkin and learning of the existence of the Apostles, Kelvin, the battle junkie Summoner from another world, and his companions decide to visit the Holy Empire of Deramis. There, they are granted an audience with Pope Philip, who offers them information on Iris, the alleged leader of the Apostles, and Serge, a Hero from lore. Just then, the famous Heroes of the current age happen to return from their own journey to the Western Continent. Unbeknownst to these two groups, Deramis will soon be plunged into a commotion as the Apostles enact the next part of their plot! Come along for the ride as this black-clad Grim Reaper and his friends stand up against a new foe in the eighth volume of this epic journey!

Shortly after Kelvin’s promotion to the coveted position of Rank S adventurer, the militaristic country of Trycen declared war on the entire Eastern Continent. In addition to launching an invasion of its neighboring countries, their infamous Dragon Knight Order is now closing in on Parth, led by Crown Prince Azgrad himself. The only thing standing between this dreadful host of warriors and ancient dragons — exceptionally powerful members of their mighty race — and the City of Peace is the Summoner’s determined companions and allies, who have been given the task of buying time until reinforcements arrive. At the same time, Tristan Faaze, the general of the Magic Knight Order, is hatching a terrible plot within Trycen itself, targeting Shutola, the princess and general of the Black Ops, who weeps for her country’s fate. Come along for the ride as this black-clad Grim Reaper and his battle junkie friends clash with the Demon Lord in the fifth volume of this epic journey!

I’m...a spy!! ​The SALF launch their large-scale attack, locking the forces of good and evil into a deadly final confrontation! Tasked with planting a bomb, Chiaki looks back on his time as a spy and makes a fateful decision. One way or another, a true hero will be born tonight!!

The threat approaches Amande—and the boy steps into the center stage once more! After successfully rescuing Celia from her less-than-ideal political marriage, Rio travels to the trade city of Amande to stock up on supplies and gather information about the hero summonings. In order to fulfill Celia's wish of informing her father of her safety, Rio attempts to infiltrate the Claire estate. Meanwhile, on her way back to Amande from attending the wedding, Liselotte runs into unforeseen trouble with Princess Flora and Sakata, the Beltrum hero!

One fateful day, a caravan was passing by the village of Teira, which had been raided and set ablaze by bandits. Within the burning rubble, a young woman found a baby, the sole survivor of the attack, and decided to take it with her and raise it as her own. As she was leaving with the little child in her hands, two falling stars lit up the night sky, and she named the boy Asterios. Years passed and the boy grew up in a caring and warm home, developing a passion for all magical beasts, choosing the path of a Summoner as his way of life. While his love and knowledge also grew boundless, his practical abilities clearly pointed out his complete lack of compatibility with that school of magic, but he never wavered in his resolution. Follow Asterios as his life of perpetual failure suddenly takes an unexpected turn, after just seconds short of his death, a powerful summon answers his call and saves his life. Wait... doesn't it look like... A GIRL?! Are those beast ears and tail?! This story includes: Mystery of the past looming in the background. Sudden strength gain with progressive development. Mild romance with a shy but strong heroine. Caring and devoted protagonist, albeit serious and decisive when confronted. Slowly growing harem. Chill and quite relaxed adventure story with a pinch of unabridged intimate situations.