A man who promised never to fall in love until he graduated high school. However, despite the possibility that Kairo will never be able to learn how to love, his grandmother always believed that Kairo would cross paths with the right person. Kairo was seventeen. However, he was very distant and was quite a loner, to say the least. And despite being one of the smartest people in his school, he never learned the concept of love. Hence, he doesn't know how to show affection.