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이달의소녀탐구 - Season 4 Episode 4
HaSeul tells the audience that YeoJin confessed this was her first trip overseas and that HaSeul is the oldest one in Loona (so far) so she feels like she must take care of her whilst she is in Taiwan. The girls help YeoJin with her photoshoot and HaSeul says that YeoJin has a lot to learn from her.