Question: Who is the star character of the film which "Spring Day" was loosely adapted from?
Sentence (from "Hoshi no Kinka"): The series revolves around Aya Kuramoto (倉本 彩 , "Kuramoto Aya" ) , a deaf and mute girl from Hokkaido who is in love with a doctor named Shūichi Nagai (永井 秀一 , "Nagai Shūichi" ) .
Relevant evidence: Yes