What happens when the actress starring in a love story also writes the song that plays when the story starts to hurt? Riho Sayashi is giving audiences an unusually personal answer with “幸福失格 (Koufuku Shikkaku),” the ending theme for the upcoming live-action drama 付き合ってあげてもいいかな (How Do We Relationship?), in which she also takes the lead role. The Japanese pop single arrives August 31, putting Sayashi’s own words and voice alongside a story about love, loneliness, and the fear