Episode 10 of "The Witch" kicks off with Jung-hyeok crossing paths with the stalker's victim, delving into the specifics of their encounters. It transpires that Dong-jin had previously approached her, sharing his hypothesis about Jung-hyeok. However, she assures Jung-hyeok that he needn't worry, as she never met the criterion of being remotely interested in Dong-jin.
Later, Jung-hyeok reconnects with Mi-jeong, finally presenting Dong-jin's college report—a gesture he had attempted a decade ago. He then unfolds Dong-jin's extensive data compilation, not merely focused on Mi-jeong but on Jung-hyeok as well. For the very first time, the revelation dawns that Dong-jin had been scrutinizing Jung-hyeok's case alongside Mi-jeong's. Jung-hyeok elucidates how Dong-jin's ultimate aim was to devise a means to love Mi-jeong.
The following day, Eun-sil seeks Jung-hyeok's update on Dong-jin. Yet, as Jung-hyeok sits ten meters away from her, he subtly conveys his burgeoning interest in her, albeit Eun-sil never overtly acknowledges her sentiments. He recounts his self-imposed isolation upon realizing that individuals around him kept suffering, paralleling Mi-jeong's plight, until Dong-jin entered his life. This underscores that Dong-jin's endeavors extended beyond Mi-jeong, encompassing a quest to safeguard Jung-hyeok.
Jung-hyeok stumbles upon the fact that Dong-jin is in Austria. Promptly, Mi-jeong embarks on a journey to meet him. Seated together, Dong-jin finally pours out his heart to her amidst an impending storm. As he prepares to depart, Mi-jeong, having scrutinized his data, observes that fatalities and misfortunes occurred solely when individuals left her vicinity, not when they were near. She then confesses her love for him and implores him to stay by her side as the storm begins to dissipate.
Back in Korea, Eun-sil confronts Jung-hyeok, urging him to bare his soul to her. She bridges the gap between them forcefully, cognizant of the risks. She boards a bus, leaving Jung-hyeok visibly perturbed about her well-being. Precisely at this juncture, Jung-hyeok receives a message from Dong-jin stating, "Don't leave her alone," the final piece of Dong-jin's puzzle. Jung-hyeok dashes to intercept the bus, fulfilling the condition to shield Eun-sil from harm.
The bus driver eventually halts, facilitating Jung-hyeok and Eun-sil's reunion, hinting at Jung-hyeok's acceptance of his feelings. Meanwhile, Dong-jin and Mi-jeong embark on a new chapter together in Austria, as the episode draws to a close.
