Read My Childhood Friend Who I Used To Train Swordsmanship With Became A Slave, So I, As An S-Rank Adventurer, Decided To Buy And Protect Her Issho ni Ken no Shugyou wo Shita Osananajimi ga Dorei ni Natteita no de, S-Rank Boukensha no Boku wa Kanojo wo Katte Mamoru Koto ni Shita • 一緒に剣の修行をした幼馴染が奴隷になっていたので、Sランク冒険者の僕は彼女を買って守ることにした • My Childhood Friend Who I Used to Train Swordsmanship With Became a Slave, so I, as an S-Rank Adventurer Decided to Buy Her and Protect Her • Issho ni Ken no Shugyou o Shita Osananajimi ga Dorei ni Natteita no de, S-Rank Boukensha no Boku wa Kanojo o Katte Mamoru Koto ni Shita
Ryunoa Styler, an elite adventurer holding the prestigious S-rank title and heir to the legendary Sword Saint lineage, unexpectedly crosses paths with his oldest companion, Aine. Once his sparring partner in their youth, she now stands before him in chains, forced into servitude. Determined to rescue her from this cruel fate, Ryunoa secures her freedom by purchasing her.
However, their reunion is overshadowed by a sinister discovery—Aine wears an enchanted collar, a vile artifact that subjects her to uncontrollable urges daily. This cursed device binds her in more ways than one, leaving Ryunoa with no choice but to seek a solution.
Now, the renowned swordsman must navigate treacherous paths, facing both mystical and moral challenges to break the collar’s hold. His journey is not just about strength, but about loyalty, sacrifice, and the lengths one will go to protect a cherished friend. The battle to reclaim Aine’s freedom has only just begun.
