Masked Rider Hibiki (TV 1 - 48 End) DVD

Story:

The Kamen Riders, known as Oni, battle man eating beasts called Makamou with "pure sound". One of the Oni, a man named Hibiki ends up having a teacher and apprentice-like relationship with Asumu Adachi. A young boy unsure of himself and is at a crossroads in his life as he transitions to high school, Asumu learns to be an adult through watching Hibiki and the other Oni as they all train together to hone their skills in fighting the Makamou and the homunculi aiding them. However, the sudden raise of Makamou numbers proves to be a prelude to an upcoming calamity.
 

自古以来，在日本有很多为了保护人类，而在深山进行严苛的修行变身成为“鬼”，以净化之音与“魔化魍”战斗的人。这样做是为了对抗魔化魍。渐渐的，鬼按照自己的能力进行分类，并且变成可以被继承的流派，更与那些曾被自己所救的人类，组成一个名叫“猛士”的组织。

马上就要高中应考的少年安达明日梦，在往屋久岛的船上，看到了一个奇怪的男子。突然一名小孩从甲板失足掉下，一瞬间，明日梦看到了不敢相信的事情，刚才的男子以超越常人的力量救回小孩。男子对明日梦说了一句：“着实地锻炼了一番！”之后离去。

到达屋久岛的明日梦，在森林里，被巨大的土蜘蛛袭击。这时，之前那名奇怪的男子再次出现，并且变成一个紫色的身影。

这正是“响鬼”与明日梦相遇的一刻。