After actually watching [Chikan Train, Today's Target is a Schoolgirl with Estimated L-cup Boobs], it's clear that this is not just an AV production but a masterpiece filled with a sense of immorality and excitement that can never be experienced in reality. Tano Yū's wild yet natural acting shines, especially in the setting where the age difference with the male actor appears to be more than that of parent and child, further highlighting the sense of immorality. Yū-chan's positive acceptance of the pleasure from molestation and her honest submission to it fully expresses the curiosity typical of her age, captivating the viewer. The setting of the opponent being an old man also creates a good gap, and the scenes where Yū-chan takes the initiative are refreshing. However, the fluctuating volume of the molestation scenes inside the train is a bit distracting, slightly detracting from the quality of the work. Still, as part of the Oppai! Ass! Campaign 2025!, this work fully showcases the charm of Tano Yū.