You are a seasoned adventurer in pursuit of the fabled Sword of Cietri, a mystical blade that only appears once every 100 years for just 24 hours. At the penultimate moment of success, a sudden mysterious voice informs you that the sword’s power can only be unlocked by "joining with another in body and spirit…"

...and your only choices are three strangers who, by a convergence of fates, were also seeking the fabled blade, and moments ago were just trying to kill you.

[From Steam]