The play is adapted from a manga of the same name and tells the story of Natsumi Kanya (Kyoko Yoshinori) in the Showa era. During the third daughter of the four sisters, Natsumi Kanya (Kyoko Yoshinori)In the spring when cherry blossoms bloom, due to a sudden engagement, Imperial Navy officer Jiang Duan Takichang (Honda Xiangya)(played by) engagement.

However, on the wedding day, Takichang was unable to attend due to work, and his marriage life kicked off in the chaotic start of the “ of the groom's absence.Two young people who have no experience in love and are innocent and innocent, in confusion and exploration, use the bond of ” couples to tie each other and get close to each other, and gradually cultivate deep love.