Coen has collaborated with Yuraku Confectionery's Black Thunder chocolate for their Valentine's Day campaign, creating a special package called "My Black Thunder Happy Chocolate!". Black Thunder is famous for its self-deprecating slogans such as "Chocolate you can tell at a glance is a gift." This special package features Coen's mascot, the Coen Bear, who exclaims, "Even the bear will be surprised at how tasty this is!" and includes the promotional slogan, "Whether it's a gift or not is up to you." Between February 1st and 14th, the gift will be given as a gift with the purchase of any product at Coen stores nationwide. Limited quantities are available at each store.