Sebastian Debeste

Yumihiko Ichiyanagi is a prosecutor sent by Hakari Mikagami of the "Prosecution Investigation Committee" to take over Miles Edgeworth's cases. He is a rookie prosecutor who even stated that he recently became a prosecutor prior to his first meeting of Edgeworth. His goal in all things he does is to be number one and he attempts to solve his cases faster than anyone else. He and his father are the only prosecutors in the series that actually wear their badges. While he is very arrogant and condescending, considering himself the best, he breaks into tears rather easily when proven wrong. He tends to act like a conductor with his baton.

A murder in a prison
Yumihiko began his career as a prosecutor shortly before the murder of Manosuke Naitō.

Name

 * His compulsive desire to be "first" and "number one" is reflected in his last name, which contains the word "ichi" (一), meaning "one" in Japanese.