Kurata Kenta, a timid commercial designer, lives with his father Taichi, mother Keiko, and younger sister Nana in an isolated home. One day, after standing up to a man who pushed a woman, Kenta is shocked by his own bravery. Soon after, their home is targeted by an unknown person, with flowers uprooted and a bicycle seat damaged. Meanwhile, Nana is stalked by her ex-boyfriend. The family works to uncover who is
