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Yasuko Kōenji is the resident of the neighboring house to the Kuroto residence.
Yasuko appears as a young woman with glasses and brown hair tied back with a ponytail with bangs over her forehead. She is generally seen wearing an unzipped red tracksuit top with a tan t-shirt under with maroon shorts.
Yasuko is usually stressed and tired from staying up drawing manga. She lives a very messy lifestyle having takeout boxes and trash scattered through her room. When she isn’t stressed and tired she is energetic, joyful, much like Shiro.