Quick answer — Risa Iraha worked on Attack on Titan Final Season (Art Design), Black Butler: Emerald Witch Arc (Art Design), Horimiya (Art Design) and 11 more anime.
Risa Iraha worked on Attack on Titan Final Season (Art Design), Black Butler: Emerald Witch Arc (Art Design), Horimiya (Art Design), Horimiya: The Missing Pieces (Art Design), given The Movie: Hiiragi Mix (Art Design), Black Butler: Public School Arc (Art Design), 7th Time Loop: The Villainess Enjoys a Carefree Life Married to Her Worst Enemy! (Art Design), Akiba Maid War (Art Design) and 6 more.