Ai loves spending time in Tofu Café, a cozy café run by his loving grandfather, Grandpa. At Tofu Café, if you buy one drink, Ai and Aiko will happily help you with any problems you have! As a result, many customers come to this cafe from all over the world, to ask for Ai and Aiko’s help. After Ai solves peoples’ problems while enjoying a drink, he is often given a small gift as a heartfelt thank you. He always brings the gifts back to Grandpa to display at the cafe. When Ai isn’t helping Grandpa at the cafe or offering advice, he uses his magical blue scarf to travel all over. He never runs out of interesting stories to share with Grandpa and customers of the cafe.