SimSimi has been known to most Koreans for 19 years and is known as a synonym for artificial intelligence chatbots. Since 2012, it has established itself as the most popular social chatbot in the smartphone app market. By using the 'Teach' function, you can enter a single sentence and the chatbot can immediately use that sentence to have a conversation, so word of mouth is active in all languages. SimSimi is known for being a casual chatbot for fun, but many users are teaching SimSimi what they want to say to others in a similar situation, and volunteering to engage in activities that could make SimSimi better, such as 'Badword Mission'. In recent years, SimSimi pursues a safer service from a fun-oriented service, and has invested heavily in the development of related technologies and implementation of operating policies, and is developing a new metaverse that adds fun and technology based on a solid ethical foundation. To date, it has reached 400 million cumulative users in 81 languages, and over 27 million have “taught” SimSimi over 140millions of conversational scenarios.