This article presents an interview with Japanese illustrator and character designer Ai Yokoyama conducted by Andrés Domenech Alcaide during FicZone 2025 (Granada, Spain). Born in Yamaguchi Prefecture, Yokoyama has worked with studios such as Gonzo and Madhouse, contributing to projects including Bayonetta: Bloody Fate, where she adapted original game character designs by Mari Shimazaki for the animated format, Basilisk, Attack on Titan, Arslan Senki, X-Men, and Space Battleship Tiramisu. She has also produced illustrations for music artists such as Eir Aoi and Kalafina. The interview addresses key aspects of contemporary Japanese animation practice: character design adaptation from videogame to anime formats, the evolution from studio employment to freelance work, analog versus digital drawing techniques (including iPad-based workflows), and the collaborative dynamics between animation and music production. Yokoyama reflects on stylistic influences such as Vampire Hunter D: Bloodlust directed by Yoshiaki Kawajiri, and discusses her creative collaboration with director Naomi Nakayama on the ending sequences of Arslan Senki. The conversation also explores labor conditions in the anime industry, internationalization of talent, and the increasing presence of foreign artists in Japanese studios. Originally published in Spanish in CoolJapan.es, this interview constitutes a primary source document for research on anime character design, transmedia adaptation, music–animation integration, and contemporary Japanese creative industries.