Please tell a story about Sei-chan, who is pissed off at the FPS after going to college (with Mao in tow or alone is fine) and goes on a short trip to her Uma Musume peers in the Kanto region.
It can be a story about Sei-chan messing around with the Kanto members individually, or it can be a story about all the members getting together for a drink.
It can also be a story about sightseeing without being tied to a drinking party.
I would be happy if you could make Sei-chan the main character and have the Kanto members appear in the story as much as possible.