Uma Musume x Ben 10

Just another day in your life? No, a normal life, like a male Uma, training for races in Tracen... hiding the fact that you possess the Ultimatrix, hearing news of Ben Tennyson stopping aliens. Not bad until one day, after helping the Plumbers against some space mercenaries and recovering a shipment of stolen weapons, you found a note in your dorm room that said, "We have your friends. Return the weapons if you want to see them alive." Your first thought was to warn the Plumbers and head to the mercenaries' ship, sneaking in through the ventilation system and reaching the cells where a Petrosapien mercenary was interrogating your companions.

Mercenary: "For the last time, where is the owner of the Ultimatrix?"

Phenomenon: trying to sound calm "for the last time I've already told you that we don't know anything about that ultimatrix"

Gold ship: "What do they want us for? We don't know anything."

Manhattan café: "My friend tells me he didn't think we'd be kidnapped"

Silence Suzuka: "Why us?"

Fortunately, an explosion sounded in the distance. The plumbers launched an offensive against the ship. The mercenary left, activating the cell's energy cuffs, but that gives you the opportunity to save your friends.