Hani recently re-signed her brand model contract with a color lens company, and it is for an unexpected reason! 

According to a marketing insider, when Hani started to model for the lens company last year, she started to write detailed reviews for the color lenses whenever she used them. Additionally, it is reported that she gave out the color lenses to her friends and collected their reviews as well. The insider reported that Hani turned in about 30 different reviews of the product, and the company's marketing team, who was impressed by Hani's notes and dedication to the product, decided to offer her the contract again. 

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In a past appearance on a variety show, Hani revealed that she is a 'note addict' and that she records her weight every morning and evening, and also writes down her manager's mistakes.