A culture festival filled with chaos! As each participant's desires clash, they are possessed by reality-altering markers, causing their bodies to transform into various forms of sexual fantasies. Mass orgies ensue, featuring futanari, rubber suits, and more. One girl experiences a gender swap, becoming a boy while her former self enjoys anal penetration and piston riding. Everyone seems to be having fun, but please remember not to get too carried away by the pleasure of others.

それぞれの思惑でTSF要素が入り乱れる文化祭開催！現実改変マーカーによって憑依、女体化、入れ替わり、フタナリや皮モノなどカオスな大乱交勃発！精神汚染で中身が男化、抜け殻の自分にパイズリ奉仕、ケツ穴丸見せ騎乗位ピストン！みんな狂ってるけど楽しそう！異性の快感に飲まれないようご注意を。