An estranged family is falling apart when a meteor shower grants the son his wish- let our family grow together again...quite literally-

After a few years, the main character Jinguu Masato, returns home. Due to his nature, he loves animals and he also likes to visit them. Because of this, he loved to visit the zoo since he was small and that's how he developed a close relationship with Hanayo. However, Masato gradually starts to notice some strange incidents happening in the zoo and after that, he's thrown into this unexpected world...