During Valentine's Day of their last year of junior high, Mayaka's attempt to get Satoshi to accept her feelings fails, which Satoshi attributes on the quality of the chocolate she made. This year, she asks for Eru's help to make an even better chocolate than the last. Meanwhile, Hōtarō runs into Satoshi at a city arcade, and contemplates on the fact that Satoshi seems to have lost his competitiveness from the year before...