OVA bundled with the 11th Shigatsu wa Kimi no Uso manga volume. The OVA will focus on Kousei, Emi, and Takeshi when they were younger, showing their troubles during their competitions and the beginning of their rivalry.

The skilled craftsman Kuroda created artificial humans called Hybrid Child—creatures who are neither machines nor dolls, but rather a reflection of the love shown to them. While they can feel human emotions and have their own consciousness, they are not real humans and require love to grow. Kotarou Izumi is the young heir to the noble Izumi family, so it is frowned upon when he brings an abandoned Hybrid Child he found in the garbage into their household. His family even attempts to throw away Hazuki—Kotarou's name for the Hybrid Child—multiple times when he is not paying attention. But through overcoming these obstacles, their love and the bond connecting them grow stronger. However, ten years pass before a horrifying realization dawns on them: a Hybrid Child might not have an endless life span. Hybrid Child is a collection of three short love stories, depicting the relationship between the artificial humans and their owners.

Nekoma High School’s volleyball team recruits a new member: the half-Japanese, half-Russian Lev Haiba. Though the self-proclaimed ace is blessed with great height, he lacks basic volleyball techniques. This gives the team's setter, Kenma Kozume, a hard time when matching up with him. To everyone’s surprise, Nekoma’s coach suggests that Lev play in the Kunihira Senior High School’s practice match, leaving Kenma no choice but to cooperate with the tall player. Will Kenma be able to overcome this new challenge?

Kuroo Hazama, also known as "Black Jack," is a legend in the medical world. Famous for being one of the best, as well as not having a license, Hazama and his assistant Pinoko save countless lives that other doctors cannot... for a price; an exorbitant price, in fact, which causes many to view the genius as greedy and heartless. Despite these claims, however, none can deny his skill and the lengths that he will go to treat his patients. This dark medical drama tells the story of the ominous and mysterious world of underground medicine as Black Jack risks his life to cure some of the most bizarre diseases imaginable, even if it means breaking every law in the process. [Written by MAL Rewrite]