The search materials contained no references to a character named "Doctor Boo" within the series "Mirai Kōshi Harima SACLA NEX RAY". Results mentioned "Doctor Boo" in unrelated contexts, including Disney Junior's Doc McStuffins, a Fantendo wiki entry, Dragon Tales, and Pixar's Monsters, Inc. Additional entries covered Future Diary (Mirai Nikki) and general "Boo" characters, all disconnected from the specified series and character.