This paper does not aim to decipher rongorongo as a linguistic system, but instead reconsiders its functional role. Due to the extremely limited corpus, lack of repeated sequences, and absence of bilingual texts, the conditions required for linguistic decipherment are fundamentally unmet. While rongorongo has often been interpreted as a mnemonic or non-linguistic symbolic system, this study proposes a further step: that rongorongo functioned as a visual device for the temporal reconstruction of events and actions. In this model, individual glyphs do not encode fixed meanings, but instead represent discrete moments or scenes. When arranged sequentially, they enable the viewer—particularly the original recorder or members of the same cultural context—to reconstruct a sequence of actions as a dynamic narrative. This interpretation also considers the possibility that each tablet records the life or actions of a single socially significant individual, rather than multiple distinct persons. By framing rongorongo as a semi-private, visually structured narrative system—analogous to a sequence of frames in a storyboard or proto-cinematic representation—this hypothesis provides a coherent explanation for the absence of repetition, variability of glyph forms, and the difficulty of decipherment. While not provable with current evidence, this model offers a consistent interpretive framework that may contribute to future research. This interpretation builds upon existing mnemonic perspectives, extending them by emphasizing temporal reconstruction and narrative reactivation rather than static memory support.