Mile es una joven que reencarnó en un mundo de fantasía. Se le concedió su deseo de tener la fuerza promedio en ese nuevo mundo, pero ese promedio es exageradamente alto.

Después de concluir con éxito (?) el incidente, Mile ingresa a la Escuela Preparatoria de Cazadores del reino de Tils, donde se reúne con las tres chicas que conoció mientras investigaba (Reina, Mavis, Pauline) y termina formando un grupo con ellas. Las experiencias de su vida anterior hacen que Mile sueñe con la felicidad promedio, pero las tres chicas tienen mucha curiosidad sobre el nivel de su poder que parece que no puede mantener oculto. ¿Se hará realidad el sueño de Mile?

Han pasado seis meses desde que comenzaron en la Escuela Preparatoria de Cazadores. Atraídos por las locas habilidades de Mile, las habilidades de Reina y las demás han mejorado rápidamente hasta que han subido de nivel sin darse cuenta. Pero justo antes de graduarse, Mile se ve envuelta en un sórdido complot. Para proteger la Escuela Preparatoria de Cazadores y evitar que la cierren, Mile y las demás deben asumir el desafío de la "Batalla simulada de certificación de graduación". ¡Es una pelea que no pueden permitirse perder!

Now full-fledged Hunters, Mile, Reina, Mavis and Pauline form the "Crimson Vow." That said, they're still just novices, so they work some questionable side-jobs while steadily gaining experience through straight-foward quests. One day, while on a quest as guards, they are attacked by bandits. The bandits think they'll have an easy time of things, but Reina's acting strangely...

Reina reveals her past... Memories of a tragedy that torments her still. Then Pauline reveals her past, and Mavis reveals hers too. Then, suddenly, Mile gives confirmation of her past as well. Up until now, she's managed to gloss things over, but the truth of her reincarnation into another world is here! And, of course, "those girls" will make an appearance too!

Now that they each know the burdens of each other's pasts, the Crimson Vow has only grown closer. Their job guarding has come to a successful close and they have a moment to enjoy a brief rest, but sudden bad news brings the smoldering embers of Reina's resentment roaring back to life. How will Mile and the others face this first threat to the Crimson Vow? Their friendship is about to be tested...

Having worked much too hard, Mile and the others decide the Crimson Vow should cease activities for a little while. In plain terms this means... That's right, every working person's inalienable right —— a vacation! While each of the friends enjoys their time off in their own way, Mile, with her sad history as a master of spending time by herself in her previous life, goes off to savor her time off on her own, but... Also, on an unrelated note, this episode contains swimsuits.

After a holiday, cruel reality is the destiny that awaits... Even in another world, that doesn't change. Mile and the others are worried about Pauline who has suddenly disappeared. Then Mavis receives a letter from home saying that her older brother is getting married, and his bride to be is none other than Pauline!? In order to settle the debts of Pauline's past and deal with Mavis' family situation, Mile and the others head to Pauline's home town!

To make it through, you need money! Even in another world, money is valued more than life! Being poor is the problem! To turn the tables on a tightfisted little girl, Mile and the others take on a high-paying quest with a high degree of difficulty -- that fantasy standard, wyvern hunting. For the sake of money, they'll even make their friends cry! This is the epic struggle of Hunters running low on money! Also, completely unrelated, there will be baths in this episode.

Someone once said that to be alone is to be indifferent to one's surroundings... Preposterous! When you're alone, because you're alone, you are more sensitive to your surroundings than anyone else. That is why Mile, with a long history of alone-ness, notices. She has noticed. And she wonders, "could it be that everyone's avoiding me?!" Mile fears the looming threat of being alone again. What are Reina and the others' true intentions?

Having made tremendous advances, breaking through everything in their path since their Hunter debut, the Crimson Vow is now being treated as the next generation of ace Hunters by the Guild. They take on a difficult quest that other Hunters shy away from, but, lurking in the shadows of the quest, beastpeople are on the move. And it seems even that is not all there is to this quest... The Crimson Vow faces its most dire threat ever. The greatest of enemies appears before Mile!

Mile has been utterly defeated by the strongest creature in the world -- the elder dragon. The average abilities she wished for when she was reborn failed against the elder dragon, crushing her spirit and breaking her heart. Who speaks to Mile in her moment of despair? What will become of Reina and the others who stand in the face of the elder dragon because they believe in Mile? Will Mile ever attain normal happiness? This is the end. Blaze away, Crimson Vow!