For Medical Science! ft. Eirin Yagokoro (Touhou Project) (Patreon)

Commissioned by Rayearth, featuring the ambitious Eirin in an escape challenge to test out her medical sleepsack as well as her homebrewed "Oil Poultice of Increased Sensitivity" on her exposed parts, lol. Even if she manages to reach the keys, idk how well, oiled feet can maneuver them into the precise locks!