Many children, many blessings: Taking classmates' grandmothers on a desert island survival miss

[Multiple Heroines + Otherworldly Survival + Upgrade & Construction + Collect All] A global transmigration to a deserted island for survival. While others start with powerful teammates, Jiang Che begins with 20 of his classmates' grandmothers! Good news: All the grandmothers possess top-tier talents—S-rank combat, S-rank construction, A-rank alchemy… Bad news: The grandmothers are old, weak, and disabled, barely able to walk, and can only wait to die when encountering monsters! Even more despairing is that Jiang Che awakens the SSS-rank talent "Many Children, Many Blessings." Looking at the elderly grandmothers with their canes and wrinkled faces, Jiang Che almost collapses! Is this survival game playing a joke on me? Until the bloodthirsty wolves descend, Jiang Che pulls out the god-level item [Fountain of Youth] from his gift pack and feeds it to Grandma Liu, who possesses S-rank combat talent. The next second, the white-haired old lady transforms into an 18-year-old, long-legged, cold and beautiful mature woman, kicking away the terrifying beast! Jiang Che's eyes light up. "Grandmas, don't be afraid. Drink this water, and together we'll build a paradise on this deserted island!" Students, I'm sorry, but I will now protect your grandmas!