Heath Underwood (Anime)

Heath Underwood, known as Hideki Iida (飯田英樹) in the manga version, is one of the two main protagonists of the Delta Battle Arc of Re:Evershade. After Heath meets his new next-door neighbor Jasmine Williams, the two are chosen by "The One" as two pure-hearted individuals to participate The One's titular Delta Battle.

In order to win the game, Heath and Jasmine form a team with Lana Lane, Beatrice Wilson, and Giselle Gardner and battle against several other players throughout space and time.

Etymology
In the original Evershade manga, his name is Hideki Iida. His given name (英樹) means "timber trees" and matches the nature theme present in Jasmine's name as well. His surname is a reference to the character Tenya Iida, from My Hero Academia.

In the anime adaptation, he is known as Heath Underwood. His given name means "someone who lived at, on, or by a moor or heath", with a heath being a type of natural habitat, referencing the nature theme. His surname in this version is a reference to his original given name, as they are both related to trees.