time for the last trains on the mrt.of people use u bikes instead of taxis to return home. before long, all the bikes at the station have been rented out. ♪ ♪ meanwhile, the u bike mover trucks are beginning to replenish the empty stations. the staff use tablets to check the number of bikes at stations nearby. >> translator: there aren't so many left. we need to go pick some up from the station near the elementary school. ♪ ♪ >> had he -- they head to a residential district where people return bikes at night. after loading around 20 bikes on to the truck, the staff head to the rental station in front of the mrt. ♪ ♪ they arrive in about five minutes and begin unloading the bikes right away. once they finish restocking the bikes, they will be finished for the day. it's nearly 1:00 a.m. ♪ ♪ >> translator: not at all. it's safg for me. -- it's satisfying for me. users appreciate it. so it's worth with it. ♪ ♪ >> thank to such dedication, the u bikes can perform their role as the last mile public transit vehicle. >> bye-bye.