Senryu (川柳) is an unrhymed Japanese verse consisting of three unrhymed lines of five, seven, and five syllables (5, 7, 5) or 17 syllables in all.
Senryu is usually written in the present tense and only references to some aspect of human nature or emotions.
Senryu often makes use of wabi or “the beauty of ordinary things”.
Below is an example of a senryu haiku:
When I catch,
The robber,
my own son