In an unusual day in the life of Ataru Moroboshi, the most unfortunate boy in love, everything changes when a mysterious extraterrestrial being arrives on a mission to help him relive his most cherished memories. The plot revolves around his relationship with the charming alien Lum, who, although always present, seems increasingly distant. As Ataru struggles with his usual clumsiness and his constant advances toward other girls, a journey through his memories becomes an emotional challenge.
With the help of his friends, including the sparkling Lum, Ataru embarks on a surreal adventure where he relives moments from his past, each more hilarious and touching than the last. However, each memory also reflects his fears and insecurities. Amid absurd situations and fantastical settings, the question is raised about the true meaning of love and the importance of valuing those who truly matter.
With comedic twists and moments of reflection, this film captures the essence of human relationships in a unique way, blending humor, romance, and a touch of science fiction. Will Ataru finally recognize what he has by his side before it’s too late? Meanwhile, Lum watches from a distance, wondering if her love will be enough to save Ataru from himself. The film is a journey filled with laughter and emotions, a classic that continues to resonate in the hearts of its fans.