[Tomotsuka Haruomi] Nenokoku no Ina (COMIC 0EX Vol. 17 2009-05) [Wrecking Army]

A shy, bespectacled young man named Kazutaka discovers his late grandmother Ina, a strikingly beautiful woman with long white hair and voluptuous curves, waiting for him in a chilly night outside her country home. She invites him inside, and as the cold night turns heated, he finds himself overwhelmed by her massive breasts and the intense, intimate encounter that unfolds. The story builds tension through whispered pleas, sudden gasps, and the raw physicality of their naked bodies as they explore a forbidden, passionate connection.