This is a pen that every Korean student who took the college entrance exam would know. Since it is definitely one of the signature memories of mine for college entrance exam preparation, I selected this pen as my artifact. For Korean college entrance exam, students can only use this type of pen. It is somewhat like a slim version of a Sharpie, and each student receive one pen at the exam place. To get used to this pen, students go through prior practice using this pen. Though I do not use this pen that often now, I still have it in my pencil case. Whenever I use or find this pen, I recall my high school life, always holding this pen to study.