Sakuratetsu Taiwahen

Nestled in the heart of a sprawling metropolis stands a small, ramshackle house that looks as though it might collapse at any moment. This is home to Sakura Tetsu—a high school student who is far from ordinary—and his family. Toiling day and night without respite, Tetsu works tirelessly to keep his household afloat and cover their mounting living expenses. Life carries on in its usual grind until the arrival of visitors from the future: alien pirates hailing from outer space. Complicating matters further, the kingdom beneath the earth lays claim to Tetsu's very land. Now he faces an urgent question—can he defend his home against these encroaching forces, or will he be forced to cede his ground to the endless wave of invaders yet to come? One thing is certain: strangeness and chaos are about to unfold.