Specials bundled with the Blu-ray volumes of Mob Psycho 100.

Hakubo revolves around the daily life of Sachi Koyama, a high school violinist with promising talent. Although Sachi is content with her school life and retains friends within the music club, her favorite pastime is appreciating the scenery around her neighborhood in Iwaki, Fukushima while walking to her bus stop alone. 

However, during one of Sachi's after-school walks, she has an unexpected meeting with Yuusuke Kijinami, a boy whom she often notices on her bus ride home. After offering to help Kijinami find a perfect view of the evening landscape—the subject of his next painting for his art club's exhibition—the two forge a bond over their mutual admiration of the beautiful scenery bathed in sunset. This chance encounter brings together these two souls who yearn to cherish the present, knowing full well how easily it can all slip away.

[Written by MAL Rewrite]

In the peaceful little town of Sakuranomori, a group of young friends are about to bid farewell to one of their own. Due to his parents’ business plans, Sana Hidaka has to move away from his quiet childhood home to the boisterous city of Tokyo. Though it pains him, he must say goodbye to his precious friends—the kind-hearted Aoi Oribe, the spunky Wakatsuki twins, Shuri and Shuusuke, and the cheerful and upbeat Nanaka Yatsushiro. But even though he is reluctant to leave them behind, he believes that no matter how far apart they are, they will always cherish the memories of their friendship. Five years later, Sana, now a 16-year-old high school student, returns to his hometown with the hope of restoring his old life. However, he quickly realizes that although his town may not have changed drastically, the friends he left behind are not who they used to be. Unsettling shadows loom over Sakuranomori as his friends hold new secrets and bear burdens that threaten the bonds they once shared.

While searching through his grandfather's attic, Hikaru Shindou stumbles upon an old go board. Touching it, he is greeted by a mysterious voice, and soon after falls unconscious. When he regains his senses, he discovers that the voice is still present and belongs to Sai Fujiwara no, the spirit of an ancient go expert. A go instructor for the Japanese Emperor in the Heian Era, Sai's passion for the game transcends time and space, allowing him to continue playing his beloved game as a ghostly entity. Sai's ultimate goal is to master a divine go technique that no player has achieved so far, and he seeks to accomplish this by playing the board game through Hikaru. Despite having no interest in board games, Hikaru reluctantly agrees to play, executing moves as instructed by Sai. However, when he encounters the young go prodigy Akira Touya, a passion for the game is slowly ignited within him. Inspired by his newfound rival, Hikaru's journey into the world of go is just beginning. [Written by MAL Rewrite]