For fans of dark and thought-provoking stories, "Oyasumi Punpun" stands out as a haunting yet unforgettable journey. Aiko Tanaka plays a crucial role in shaping Punpun’s life, with their bond being both beautiful and tragic.---## The Role of Aiko Tanaka in "Goodnight Punpun""Aiko Tanaka is one of the most enigmatic and important characters in "Oy