Cycle-cycle

Two high school boys Junpei and Satoshi start a bicycle trip around Japan on a tandem. Soon they argue and split up. Junpei keeps his own trip on the bicycle and picks up a hitchhiker named Mitsuru to ride with him. Mitsuru is heading to his grandfather's who he hasn't seen for years. However, when they reached the house, they found a dead body in the room.
(Source: IMDb)