[Saga no Tame no Saga (Ratoo)] Don Den Bon Ch. 1 [kappasa]

A tearful girl finds herself lost in a strange black void, and the only friendly face around is Yanai Kento, a scrappy young boy who cheerfully introduces himself and offers to give her a tour of her bizarre new surroundings. Before she can even wipe her eyes, a towering faceless woman with enormous, jiggling breasts and endless curves scoops the girl up, smothering her between soft cleavage and thick thighs until she's a blushing, overwhelmed mess. Left sprawled on the floor with a dazed, tongue-out expression while the boy looks on, the newcomer quickly learns this place has far more in store for her than any tour.