[Karuno Kamo] Kyodai Musume no Oppai ni Oikake Rareru Hanashi

A man wakes up alone on a park bench in a strangely deserted city, only to learn the streets are empty because a playful giantess has turned them into her game board—her colossal breasts are the hunters, and if they catch him, he loses. What starts as her simply lowering her tits onto the skyline becomes a full-blown chase, buildings crumbling as he sprints through canyons of flesh that dwarf the skyscrapers around him. When the tiny man is finally pinned beneath soft, mountainous cleavage, she plucks him up with a grin, declares him the loser, and sweetly promises they'll play again sometime.