- “Dammit... She got me again.”—Nishikata
"Eraser" (消しゴム, Keshigomu) is the first chapter of the Karakai Jōzu no Takagi-san manga series.
In class, Nishikata is secretly preparing a jack-in-the-box to surprise Takagi. It's his vengeance to her for always making fun of him. While preparing the surprise, he notice something wrong with her. Her pencil case seems to not open. As a result, she asks him for help, which he kindly accepts.
While opening it, he notice that there is in fact nothing wrong with the pencil case. After lifting the lid of the box, a small model of a cat face jumps up. Nishikata is surprised, he even screamed.
- On December 15, 2018, author Sōichirō Yamamoto redrew the first chapter of the manga using the current artstyle.