My Youth Romantic Comedy Is Wrong, As I Expected @ Comic, Vol. 13

It's the start of winter, and busy times are ahead for Hachiman, whether
it's dealing with Iroha's selfishness or going on a New Year's shrine visit with
Komachi. He and Yui are planning to also buy a birthday present for Yukino, but
Hachiman somehow ends up on a date (maybe?) with Yukino's sister
Haruno?!