It's valentines' day, and. Buurin is helping a local sweets shop to deliver chocolates around town. As orders pile up, she worries she won't even have time to give chocolate to Koichi before the day is over.
新しいケーキ屋さんにお客さんを奪われてしまったケーキ屋さん。再びお客さんを呼ぶために、「勇気のない女の子の代わりにぶーりんが愛の宅配します大作戦」を計画し、ぶーりんも手伝うことになるのだが…。
