Birthmark.During an ice skating race against a classmate, Satoru holds back from winning to avoid inadvertently trying to change the future, angering the classmate and disappointing Kayo. After learning that Kayo's birthday is on the same day as his, March 2, Satoru deduces that she will be abducted on March 1, as the abduction was in March but before her birthday. Satoru spends some time with Yuuki, still convinced that he is not the kidnapper...