Re:Eng is an AI email product designed to help people practice English. Through emails based on real-life scenarios, it aims to enhance English communication skills, broaden vocabulary, and facilitate smoother interactions. This product caters to employees working at large corporations, individuals seeking pen pals, and those who aspire to grow alongside others. Users receive daily emails containing various questions and tasks. They can improve their English proficiency by replying to emails, completing small tasks, and engaging in simulated conversations. Additionally, it offers features such as vocabulary expansion, realistic scenario simulations, and personalized learning recommendations.