This project explores the tension between the joy of childhood memories and the inevitable weight of adulthood. Brightness, playfulness, and innocence from childhood gradually give way to darker tones shaped by responsibility, conformity, and social pressure from adulthood. However, the dreamlike essence of youth does not completely disappear, instead, it lingers beneath the surface of adulthood like a distant echo. In moments of reflection, these fragments of innocence resurface, reminding us that the joy of childhood remains a part of who we are, even as life grows heavier. The concept does not treat ‘Sweetness’ and ‘ bitterness’ as separate phases, but as intertwined layers of human experience. Therefore, the ‘sweetness’ and ‘bitterness’ are combined in this project in all kinds of ways.