Story of old time gods or heroes is:

The one word substitution is Legend.

Lyric: expressing the writer's emotions, usually briefly and in stanzas or recognized forms.
Epic: a long poem, typically one derived from ancient oral tradition, narrating the deeds and adventures of heroic or legendary figures or the past history of a nation.
Romance: affection, amour.
Legend: a traditional story sometimes popularly regarded as historical but not authenticated.