Araki was assigned by his parents to go to his grandfather's house to take care of him after school because his health seemed to be weakening these days. It seems that her appearance has helped his health improve markedly. It was all thanks to the suggestion because the buttocks were always sticking up to deliberately show him. Although he is old, the sexual energy is always hidden in him, especially his niece who is always constantly seductive, it has made him feel like spring, crushing his lewd niece to fuck endlessly.