Leonardo Watch (Japanese: レオナルド・ウォッチ, Hepburn: Reonarudo Wotchi) is a fictional character from Yasuhiro Nightow's manga and anime series Blood Blockade Battlefront.

In order to provide for his sister, Leonardo finds a new job as member of the Libra Organization who are to clear the streets of trouble and prevent the horrors of this city from spreading to the outside world.

[2] Anime director Rie Matsumoto found issues with adapting the Blood Blockade Battlefront manga due to its narrative lacking an overreaching structure.

Despite being initially glad that her sister is getting married, Leo is taken for a loop when he discovers the groom has a dangerous secret of his own; one directly connected to the All-Seeing Eyes of the Gods.

White's brother, Black, is controlled by the spirit of an entity known as the King of Despair uses the power of Leo's eyes to ignite a huge catastrophe on Hellsalem's Lot during Halloween.

Upon seeing the chaos the King of Despair has caused, Leonardo travels across the city constantly being aided by the members from Libra in order to reach the siblings.

In an original video animation Libra courts some extremely wealthy potential sponsors at an otherworldly restaurant, only to discover the food served there is so delicious it drives them insane.

[8] MTV Geek found compared him initially with a shonen manga lead character due to how incompetent he is presented as, with how his supernatural skills bring parallels with other members from Libra.

[11][12] The Fandom Post criticized Leonaro's role in the anime for often being in the need of help or suffering, but still felt that thanks to the eyes, the character is given his own appealing scenes,[13] most notably the first anime's finale where he takes a more heroic role seemingly inspired by Klaus, and the rest members of Libra, in order to save White and Black from the King of Despair while still giving a major message to the audience during his final confrontation.

[15] The same site said that despite Leonardo's constant grief for making Michella's lose her eyesight, the anime gives him a more optimistic personality, and establishes a good relationship with Klaus.

[17] Despite Leonardo's take in the original series, his role in the sequel Beyond was met with praise most notably when dealing with his comical due to his first panic attack upon hearing about her marriage which causes him to possess civilians during his shock.

[20] In a more general overview of the Beyond, Manga.Tokyo claimed that while the final episode managed to bring more information about the characters' eyes, there were not major changes in the story due to the lack of an overreaching narrative.