Line was launched by NHN Japan, a Japanese subsidiary of Korean Internet group NHN. Although it is a communication application that started late, it was officially launched in June of 20 1 1 year, but it has more than 400 million registered users worldwide. The most attractive function of Line is "chat emoticons". More than 250 kinds of characters give users an interesting tool to convey their feelings when using Line. Among them, the cute and distinctive images of Shantou Man, Kony Rabbit, Brown Bear and James designed by Line are widely praised, which makes these four cartoon images an important element to connect other Line products.

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