Ren Kirishima is one of the main characters in the anime series 'Wooser no Sono Higurashi.' She is a high school girl with a calm and collected personality. Ren is often seen alongside her friend, Rin, and plays a significant role in balancing Wooser's eccentric antics with her mature demeanor. Despite her composed nature, she occasionally reveals a playful side. Ren's interactions with Wooser and the other characters highlight her supportive and caring nature, making her an essential part of the show’s dynamic and humor.