Voice actors Miho Okasaki (Rimuru) and Megumi Toyoguchi (Raphael) spoke to Anime News Network about their time together (so far) as the duo, and even shared a behind-the-scenes look into their own chemistry. MEGUMI TOYOGUCHI : As the story goes, the relationship between Rimuru and Raphael has deepened over time. I think that's true not only in the world of That Time I Got Reincarnated as a Slime , but in the real world as well. Rather than observing them from a distance, it feels more like I'm letting Rimuru come through me. However, on the first take, it feels more like I'm letting Rimuru come through me.