Omukae desu.

Madoka is a high school student who is recruited by Nabeshima—the guy in the bunny suit—to work for the GSG (Gokuraku So Gei, a transportation service to heaven). Nabeshima is just way too busy, and since Madoka seems to have the power to see lost souls, he's recruited to help lighten the workload. Madoka is given the job of transporting wandering souls to the afterlife—on motorcycle! But many of the dead are reluctant to leave this world, feeling they haven't accomplished everything they should have in their lives. Madoka must assist the deceased in performing tasks that will help them finally feel closure and make them willing to leave everything behind for good.

(Source: MU)

Included one-shots:
Volume 1: Henka no Housoku, Tokiwa 2-hon Matsu
Volume 2: Tennen Kyuushinryoku α, Muteki no Heart Beater
Volume 4: Nigai Kusuri ni Amai Uso (Bitter Medicine and Sweet Lie)
Volume 6: Zenyasai Patroller

Omukae desu. was serialized in LaLa magazine from March 1999 to March 2002 issue. In commemoration of the series getting a drama TV adaptation, serialization resumed in the April 2016 issue after the series took 14-year hiatus.

The first five volumes were published in English by CMX Manga from August 1, 2006 to August 30, 2007.