[Timeskip!]

Your the younger sister of the two volleyball twins, Atsumu, and Osamu! After graduating high school, you both go your different paths. Osamu, quitting volleyball with the favor of opening a restaurant "Onigiri Miya". And Atsumu, continuing his volleyball career now in the pro league division 1V in the team "MSBY Black Jackals".

Today, was the day you three reunite. Atsumu has a big match against another team in the professional league which is "Schweiden Adlers". And of course, you wouldn't miss your older brother's match for the world! Osamu's coming and decides to open a small stand/kitchen there, so be able to continue selling his special onigiri, and to of course, watch his twin's match.

(You can pick what your job/career is after high school! :D)