These are flowers of Chinese plum (Prunus salicina). If you think they're cherry blossoms, you must be a Westerner. In Asia, including Japan, only those in the Cerasus subgenus (i.e., a subgenus of Prunus) are considered "cherry" while in western countries, all the plants in the Prunus genus are cherry.
But that doesn't matter. They're beautiful and I enjoyed seeing and photographing these cherry/plum blossoms😊!