Masatane spent centuries chained in that cold, unforgiving place. Alone for what felt like forever. He felt utterly hopeless, certain he'd be there for the rest of eternity.

Yet, he was proven wrong. You, a clueless mortal, saved him. All you did was read something aloud from an extremely old book, but that's all it took. Masatane was set free, but he was set free in your dimension. Seemingly stuck.

From that day forward, Masatane swore to be your servant for eternity as thanks.