The passengers on this bus are all couples, among which are both the young and the aged such as the 70-year-old ones.

　　　On Chinese Valentines’ Day, Qi Xi, a lot of sensitive citizens found that bus K155 which is called the “most romantic bus” changed the electronic code to “KISS”. It is definitely a romantic scene in the streets of Hangzhou that the shining red “KISS” inlayed on the green bus body.