Roland is the Adventurers Guild's ace in both name and deed, and a former legendary assassin. For his next quest, he is sent to help rebuild the Hadenberg Kingdom, which has been torn apart by war with the demon lord's army. There's far more waiting for him than a normal guild assignment, however. Someone is scheming to kidnap a queen that Roland just happens to have met before...

When Almelia, the hero Roland accompanied on their quest to defeat the Demon Lord, suddenly receives a marriage proposal from a prince of a neighboring country, the King tasks Roland with escorting her to her potential groom. However, the motives behind this proposal seem suspicious, and it's up to Roland to get to the bottom of it...

While Mimori's journey for revenge takes him all over this magical, dangerous world, his classmates are fulfilling their destinies as "heroes" by facing off against the hordes of the Demon King. Despite the cruel world she's found herself in, S-class hero and ex-class rep Sogou Ayaka still wants to protect her weaker classmates - from their enemies, and from the cruel whims of the Goddess. But when it's just her up against an army of monsters, can she even save herself?

After defeating the Sword of Courage, Mimori Touka finally arrives in the Country at the End of the World. Forbidden Magic is finally within his grasp—and it’s strong enough to break through the defences surrounding the Goddess Vicius so that Touka can take his long-awaited revenge! But the Country at the End of the World has its own problems on the horizon: the strongest knights of Alion are about to invade. Can anyone stand against them?

Roland's victory over Amy came at a high price, and Rila's collar was destroyed in the process. Hoping to repair the powerful item, the former assassin searches for its creator, which takes him to an old friend. Meanwhile, tragedy strikes in the foreign nation of Reubens when the king is found dead. Only one of the greatest assassins in the world could have done this. It almost seems like Roland himself was responsible...

Roland's attempt at an ordinary life as an Adventurers Guild employee after being the greatest assassin is upended when a royal request calls for him specifically. Princess Almelia, one of Roland's former comrades, is getting married, and she wants him to protect her!

BEST SERVED COLD After surviving the unsurvivable Ruins of Disposal, Mimori Touka plots his revenge against the foul Goddess, Vicius. When he hears of strange magic in the town of Mils, he believes he's found the key to defeating her. With renewed hope and a clear path ahead of him, Touka seeks out the Forbidden Witch to begin the second act of his dark, vengeful journey!

In pursuit of a "normal" life, Roland has given up the assassin life and settled into his new role as a guild employee. But thanks to his unique set of skills, he's already made quite a name for himself. He's even got a new home, where he spends his days off with his demon lord companion Rila, but when he finds a slave girl alone in a back alley and decides to bring her home, they become a family of three! Will these unlikely roommates be able to get along?

GETTING EVEN IS BETTER WITH COMPANY Having successfully conquered the Ruins of Disposal, Mimori Touka is one step closer to exacting revenge on the Goddess who banished him there. Following the advice in The Forbidden Arts, Touka's travels take him to the town of Mils and into its dangerous ruins. There, he seeks out the rare ingredients needed to enhance the powers of his only companion, the slime, Piggy-maru. However, the ruins gift him with something he did not expect: the female knight Mist. Now with a frontline ally, the next step of his revenge preparations can proceed...

Someone is plotting to take over the Felind Kingdom, and they've hired an assassin to kill Princess Almelia. Naturally, Roland is tasked with protecting the girl; who better to protect her from an assassin than another one, right? However, Roland's foe is no ordinary killer this time. It's the very woman who taught him all he knows. Can the legendary assassin kill his master? Does he even want to?

Ex-assassin Roland devotes himself to his everyday business as a new employee of the Adventurers Guild. Through his honest work, he has earned the respect of his colleagues. Meanwhile, the remnants of the Demon Lord's forces are once again attempting to seize control of the human world, and Rila is determined to stop them in their tracks!

The invasion has begun. The Demon King's armies are bearing down on the humans, ravaging the main forces from country after country. The heroes from another world, once the students of Class 2-C, are fighting for their lives against impossible odds. But when a figure in a black robe and fly mask appears on the battlefield, will this mysterious person turn the tide? And how will Mimori Touka use his incredible abilities in the face of a continent-wide war? Series Overview: Mimori Touka and his classmates are abruptly catapulted into a fantasy world, summoned by the world's resident goddess to serve as heroes. The good news? Most of the students display amazing skills upon arrival! The bad? Mimori is the worst of the lot, bottoming out at a measly E-rank. Incensed, the goddess tosses him in a dungeon to die--but, it turns out, Mimori's skills aren't so much worthless as they are abnormal. Abnormally powerful, perhaps!

In recognition of his skills and accomplishments, the guild master promotes Roland, former legendary assassin, to the position of tactical advisor. As Roland directs a large-scale quest at the behest of his superiors, however, he finds his old companion Lina in a strange cavern-and a malicious force using her magical powers for evil!

Roland is the world's greatest assassin, he's a man who's taken a worthless skill and made it so powerful that he managed to kill the greatest demon lord that's ever lived. He could live out the rest of his days as a wealthy and famous man, but instead chooses...an exceedingly normal life working at an adventurer's guild?! For someone as exceptional as Roland, aiming for a normal life won't come easy, however...

With a worthless skill, Roland managed to kill the most powerful demon lord that's ever lived. While he could have all the riches in the world, all Roland really wants now is a normal life. Such an unremarkable existence may not come easy to someone so exceptional, however...