Mercari is running an official social media campaign to mark the launch of Kids Flea Market. The entry period runs from 15 October to 3 November, with original merchandise awarded to 100 winners selected by lottery.
Mercari plans to roll out its “Mercari Kids Flea Market,” which gives children the experience of selling and buying, nationwide, and is running an official social media campaign to mark the launch. The campaign runs from 15 October 2026 at 0:00 to 3 November at 23:59, with original merchandise awarded to 100 winners selected by lottery. The prizes are 3-item sets including an eco bag, a缶 badge, and a QUO Card worth ¥3,000.
To enter, applicants must follow the account on X or Instagram and repost a post or make a post, adding “#うちの子とメルカリ.” The announcement states that the content of the episode post itself will not affect the lottery results, and entries are limited to residents of Japan.
Winners will be contacted by direct message from Mercari JP by 10 November 2026 at 23:59 and will receive instructions for registering the delivery address for the prize. Failure to reply by the deadline may result in disqualification, and winners must continue following Mercari’s official account when contacted.