What are the seats for July 15?

Legend has it that a long time ago, when Hercules was fighting Xu Dela, a cancer rose from the sea to help the snake bite Hercules' ankle. Later, the cancer was killed by Hercules and landed on an island in the Aegean Sea. Cancer didn't finish the task of the goddess Hera, so it was cursed, and the curse spread to the queen of Athens. When Princess Melo of Athens was born, a prophet predicted that when the princess got married, the queen died. For this prophecy, the queen has never proposed to the princess. Until Milo was twenty years old, a prince named Sosa came to Athens. Sosa came here because he wanted to marry Milo, who fell in love with him at first sight. However, the curse is terrible, and the princess doesn't want to sacrifice her mother's life just for her own happiness. So she tried her best to stop what she said and her desires. He set up nine levels, just like nine impossible tasks. Only by completing them one by one can he marry Milo. However, the brave things have been done one by one! The princess is in a dilemma. The great mother decided to marry Milo to Sosa for the sake of her daughter's happiness. On the day Milo and Sosa got married, the Queen was not present. She didn't want any accidents to spoil the party. The queen quietly walked to the seaside, faced the waves of the Aegean Sea and drowned herself. When people couldn't find the queen, they found a huge crab at sea, with its arms around its chest, and it felt insecure. Hera regretted it after learning it, so she made Cancer a constellation in the sky, and its image was Cancer.