Kujira gami

A small Japanese village is obsessed with killing a monstrous whale that has decimated its hunting parties. The town's wealthiest man offers his land, position, and only daughter to the individual who can kill the demon whale. Shaki, a popular young man whose family has been massacred by the beast, steps forward vowing to slay the whale and avenge his relations, but his efforts are complicated by a brutish stranger to the village also intent on killing the monster and collecting on the promised riches.