This Aquabub project combines portable stress-relief traditional toys with breathing training, creating a personalized interactive experience centered around a marine aquarium theme. Users press the ocean creature toys to guide their breathing rhythm, helping to relieve stress. Each training session produces bubbles and earns points to unlock a variety of ocean creatures. Users can also share their aquarium with friends, nurturing it together. The experience provides a calming, therapeutic environment, offering both emotional support and a sense of accomplishment while building connections and relieving feelings of loneliness.