I Can Speak (2017)

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Ok Boon, aka the Goblin Granny, is a feisty, elderly woman who combs through the town for any sign of trouble. Over a span of 20 years, she has filed 8000 complaints to the district office. When Min Jae, a stickler Level 9 civil official, transfers over and asks the unstoppable granny, according to procedures, to take a number for her complaints, great tension rises. One day, Ok Boon witnesses Min Jae speaking English like a native, when she’s disheartened for not improving in English after many years of studying and begs him to teach her. Later, the unlikely duo, with absolutely nothing in common, begin having English lessons. As they spend more time together, they start to understand and communicate with each other and become close like family. Having always wondered why Ok Boon is so bent on learning English, Min Jae later learns that there is something she must say in English.