本剧根据「八百屋阿七的纵火事件」改编，讲述江户时代，八百屋之女

“八百屋阿七”为了拯救初恋吉三郎而主动承担纵火罪行，最终被处以火刑的悲恋故事。

就在五代将军纲吉刚刚上任的延宝九年（1681年）二月，江戸本郷丸山发生了火灾，一直烧到驹込，在追分片町的富裕的菜铺「八百源」也被波及到。「八百源」老板的女儿阿七前往大乗寺，在阿七在寺庙中帮忙照顾因火灾而栖身于此的无家可归的孩子们的时。第一次遇见寺庙中的侍童吉三就一见钟情坠入爱河。后来八百源重建，阿七就回到了追分片町。此时，父亲相中了能干的二掌柜勘蔵作为自己的女婿。但是阿七的心中却只有吉三，而吉三也…

It’s 1681, Oshichi is the daughter of Kihee and Ofusa who own a vegetables store. Unfortunately the store burns down in a fire, while it’s being rebuilt Oshichi is sent to a temple. There she meets and falls deeply in love with Kichisaburo. Together they take care of and teach homeless children. However, after having returned home Oshichi learns that her father has someone else in mind as her future husband.