The Mysterious Backpack: Tobi Otogiri's Secret World

In the intriguing world of Tobi Otogiri, a young boy finds solace in secret conversations with Baku, a mysterious backpack gifted to him on the day he last saw his older brother. This enigmatic relationship takes a turn when Ryuuko, a classmate, reveals she can not only hear Baku's voice but also see the peculiarities surrounding it. This revelation opens up a new chapter in Tobi's life, filled with mystery and unexpected connections.