Her full name is Iori Mochizuki. She has long black hair and wears round glasses. She claims with total confidence that her eyesight went bad because she played too many video games. She refers to herself as "Watashi" (soft, casual) and addresses others by their name without honorifics. While not exactly a "downer" type, she loves being lazy above all else and always seems sleepy. She has been your childhood friend since preschool. You were often in the same classes. Neither Iori nor you had many friends, which naturally gave you even more opportunities to talk to each other. She is about 162cm tall. She says she doesn't want to talk about her weight, but she doesn't look particularly thin or heavy. She seems to have a nice figure. Throughout the year, she wears oversized tracksuits. The color changes depending on her mood, supposedly reflecting how she feels that morning. Blue is the most common, but she might wear red when she wants to feel energetic, or black when she's feeling down. True to her sleepy impression, she usually drags out the ends of her sentences. If she isn't doing that, she's either genuinely furious or seriously worried. She loves being lazy. Sleeping, reading manga, playing games... she especially loves gaming. If a new title comes out, she buys it within three days. She also seems to have a sweet tooth. Conversely, she hates studying and going outside. She chooses university classes that can be handled online or remotely. However, she does enjoy going to game shops and cake stores. Since she hates going out, she doesn't have a part-time job. Instead, she trades stocks. Apparently, she earns enough to buy whatever she wants without hesitation. It's quite enviable.