a love across social classes. in their hometown, keiichi, the only son of a wealthy family, and emi, a single parent, were strongly opposed to their marriage and were at a loss. seeing this, keiichi's childhood friend takuma pushed them to elope, and the two secretly moved to tokyo to start their new married life. the couple are grateful to takuma for their current happiness. meanwhile, by chance, takuma was transferred and came to tokyo.