[konnyaku] Big Sis Sayu Wants to Act The Part [AlerianTL]

In a steamy bathing room, Sayu, a confident big sister with a playful grin, decides to take charge and seduce her younger brother, promising a better view and making him happy. She experiments with various positions, learning from naughty books and feeling the thrill of being watched, while he reacts with shy surprise and reluctant delight. The story unfolds with teasing dialogue and intimate moments that highlight her determination to act the part and his eager, if nervous, response.