Global Mecha Frenzy

Aiming for no female lead + mecha + superpowers + urban setting + no System (Humbly begging all you amazing readers to give me some votes to encourage more updates. Write for love, ask for nothing else.) On October 6, 2023, the Beast Realm suddenly descended upon the Pacific Ocean near Blue Star, sending nations into turmoil. On October 8, 2023, the Free Nation, Huaxia, and the Soviet Union became the first three nations to set out for the Beast Realm. In the waters near the Beast Realm, all three nations' fleets were attacked by monsters and nearly wiped out. The Free Nation even lost two nuclear-powered aircraft carriers, shocking the entire world.