Rentaro encounters the smartest student in school, Eiai Nano, and it turns out she's a soulmate, too! However, her extreme rationality leads him to question whether they really are meant for each other.
How can you tell? 
People often tell me I seem emotionless.
كيف عرفت؟ غالباً ما يخبرني النّاس
بأنّني أبدو خالية من العواطف
Du siehst mir das an?
Man sagt mir oft, ich zeige keine Emotionen.
¿Cómo lo supiste? La gente suele
decir que no demuestro mis emociones.
¿Cómo lo has sabido? La gente suele
decir que no muestro mis emociones.
Como você sabe? As pessoas sempre
me dizem que pareço não ter emoção.
Как ты угадал?