The blue house is the capulets and the red house monteques
The two houses have beef and have disliked eachother for as long as they have known eachother
One day Romeo(monteque), and Juliet(capulet) saw eachother at a party and they were both in love.
Romeo hears Juliet talking to herself about him so he climbs up the building to see and talk to her
Romeo has to leave because he was fighting Tybalt and stabbed and killed him, The king made him leave his home and go live somewhere else
Romeo heard that Juliet was dead so he went and bought poison then went to where juliet was and drank the poison to kill himself, shortly after Juliet woke up and saw that he was dead, she tried to get any of the leftover poison but she could only find his dagger so she stabbed herself in the heart