Tập 4: Tài năng bóng chày của Haruko và mối đe dọa từ vệ tinh khiến Naota gặp nguy hiểm ở Mabase.

4

Haruko proves to be a star baseball player with phenomenal hitting and pitching skills, nearly single-handedly defeating the Mabase Martians, who are coached by Naota's grandfather Shigekuni. Naota, however, refuses to swing when he is at bat (it is implied that he does not want to be compared to his brother, who is a professional baseball player) and gets hit by one of Haruko's pitches. At home, Kamon and Haruko indulge in odd behavior that inflames Naota's jealousy. He meets Commander Amarao for the first time, who warns him about Haruko. Commander Amarao works for the department of Interstellar Immigration alongside his subordinate Lieutenant Kitsurubami. He discovers that a satellite damaged by one of Haruko's hit baseballs is rapidly falling towards Earth. It homes in on a sudden burst of light from the N.O. channel in Naota's head that is triggered by his anger towards his father, and targets Mabase. Naota confronts Kamon and hits him in the head with a baseball bat, only to discover that he has hit a robot impersonating his father. He finds the corpse of his real father and revives him with hot water. After receiving a message that Commander Amarao had asked Naota to pass on to her, Haruko takes Naota to the top of the Medical Mechanica plant, where she extracts a Gibson Flying V guitar from Naota's head, which she calls his 'bat'. She then leaves as the falling satellite heads straight for Naota. It unfolds into the shape of a baseball glove and launches a bomb that looks exactly like a baseball. Naota swings his 'bat' and manages to halt the bomb, which begins to detonate. Haruko returns to rescue him by swinging her guitar and knocking it back into space. (Source: Wikipedia)