After School, the Gal Who Takes Over My Room and Her Command Game

"Alright, who's the King? You gotta do whatever I say, Senpai!"—After school, Mirei, my junior gal, barges into my room like it's the most natural thing in the world. What starts as a card game in my room alone together somehow escalates into a battle of zero-distance closeness and teasing punishment games...!?