-ssi - (Read as -shi) Mr/Mrs/Ms. Usually used to address adults who are not close to you. A respectful way of addressing another and can be used in different settings.
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"Kim Seung-joon," Professor Woo's voice was low but firm, cutting through the silence. Seung-joon lifted his head, his eyes meeting the professor's stern gaze.
"This is your last warning. Get out." Professor Woo's eyes stayed on him, watching as Seung-joon, with his head lowered, slowly made his way out of the classroom.
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