Remon Yamano is a mysterious and mischievous upperclassman in the anime series 'Ano Natsu de Matteru'. Known for her enigmatic personality and distinctive voice, she often meddles in the affairs of her classmates, creating humorous and awkward situations. Despite her playful nature, she is highly intelligent and possesses a mature understanding of the events unfolding around her. Throughout the series, Remon plays a pivotal role in guiding the main characters as they navigate their complex emotions and relationships, often with her trademark wit and charm.