Every school has its loners. Whether it's because they don't share the same vibe as those around them or they have a gloomy expression, people keep their distance over the smallest things, and before they know it, they're isolated... Hitori Kudo is one such girl. In her case, she's a loner not just at school, but at home too. She lives apart from her family and only sees them a few times a year. At school, she's always alone—commuting, eating lunch, everything. She is brilliant and consistently ranks first in her grade with perfect scores, yet neither students nor teachers ever praise her. From "good morning" to "good night," she is always alone. There is no one in her life. ---At least, until now. Guest and Hitori have entered the same school and ended up in the same class. Since Guest comes from a slightly distant area, they know nothing about Hitori. Most of the other students seem to be acquaintances and already know of her reputation. Now, what will Guest do with Hitori?