Childhood friends Kouta and Tougo reside together in Kansai. Kouta has a sweet tooth and strikes a deal with Tougo, the heir to a Japanese confectionery store, about getting married if Tougo can produce heavenly Kaiten-yaki. Now high school students, Kouta and Tougo are still in love and enjoy their time together. However, with a trendy Western bakery emerging nearby, Tougo's store is struggling. Things get more complicated when Kouta agrees to a date with the charming manager of the Western bakery, Satoru, causing tension with Tougo.
