mulan (played by chen miaoying)'s father hua hu (played by luo jiaying) was persecuted by the latter because he accidentally broke the crime of visiting the lang father and son, and was included in the list of conscription to wipe out the turks. hua gu is old and weak, and this trip is destined to be gone without returning, and the only man in the family, ding mudi (played by wei jiaxiong), is also just Gamma星云第58号行星“K隆星”的人，不，更准确的说应该是“蛙”。5蛙先遣小部队来蓝星做取样调查，结果队长keroro军曹行踪败露，被蓝星人日向一家发现并活捉，侵略利器“Kero球”也落到了弟弟日向冬树手里。而大本营侵略飞船见情况不妙，便仓皇逃离。留下了先遣部队5蛙组散落在蓝星，等待后续商讨。无依无靠的keroro company, come in keroro背地里建起了小基地，也在积极联系散落在各地的其它伙伴。其它成员也慢慢现出真身，小部队能达成他们的心愿，攻陷地球么？地球的命运会如何？敬请收看《K隆星大战蓝星》，又名《外星人在地球的幸福生活》ccc