"Our chatbots are special. They take you through a series of experiences to scaffold learning, incorporating branching and decision-making scenario to promote active learning. Hence, the exchange between you and chatbot is not just "question and answer" but the thoughtful design of activities to build learning. We use story-based videos to engage you in conversation and encourage you to think and reflect through critical reflection questions. We make the chatting less formal, so you feel like you are chatting with your good friend and learning about the topic in the process. We even create a personality for the chatbot to connect with you."