During his parents' overseas trip, Masao-kun is left in the care of a kind and lovely older sister, Anri. He adores her not only for her gentle nature but also for the pleasant aroma that fills her home. While he feels a little lonely being away from his parents, he finds joy in spending time with his favorite older sister.
One day, Anri decides to make hamburgers for Masao-kun, who is thrilled by the delicious meal. But as the day goes on, Masao-kun's condition takes a turn—he becomes increasingly excited and flustered, leading to a series of playful and intimate moments between him and his older sister. Anri, ever the caring and attentive older sister, takes it upon herself to help Masao-kun recover from his unusual "illness."
What starts as a simple treatment quickly turns into a series of delightful and sensual experiences, as Anri uses her hands, her mouth, and even her body to help Masao-kun feel better. Through gentle touch, massage, and even some playful teasing, the two share a special bond that deepens with every moment.
As the treatment continues, Masao-kun's condition improves, and he becomes more and more comfortable with Anri's care. Their connection grows stronger, and the playful intimacy between them reaches a satisfying climax. After a long and passionate session, Masao-kun finally feels completely better, and the two share a moment of pure satisfaction and affection.
As the night comes to a close, Masao-kun is left in a state of complete relaxation, knowing that he will see his beloved older sister again the next day. With Anri's care and love, he can't wait for the next time they'll be together.
