" Summer " , played by Hyun Bin is the architect, Shin Mina is the film columnist , Liucheng Fan is a programmer , three people can be said Yuppie-Young Urban Professional portrait . Hyun Bin , Shin Mina , Liu Chengfan three individuals each have their own style of love, friendship and conflict , like in our everyday life , happy to go to work , meet, leave , love, respectively .