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You have to prepare other sweets at the time of drinking for customers when visiting. Later, if the HAKOBUKUN comes this will bring a warm tea to the customer as the drink will cool down or let the customer wait. Another feature is that cold drinks are cold and warm drinks are served in warm condition because part of the saucer is a metal of heat conduction. HAKOBUKUN 's eyes are equipped with an infrared sensor to sense the customer and carry it to the target person. It supports hospitality to customers who came home by HAKOBUKUN.