S1.E3 ∙ Today is Sensei's Home Visit! / Let's Meet the Pretentious Kid!

Three tales based on the Gradius video game series by Konami.

High school freshman Rihito, who just came back from abroad, started a new life in Japan with his four Busou Shinki, female action figures with weapons.

Lies, vast or petty, have been persecuted by the death queen, Violet. When the universe is nearly free of dishonesty, a group of convicted liars steal Violet's daughter, Celeste. Who better than the queen's quirky girlfriend to fix this? But the rebellion isn't as pure as it boasts; their 'heroes' have dark secrets of their own.

When the secret occult society, Shiromorishuua, sends a huge monster to attack Tokyo, ASY, a peace-keeping organization in Japan, retaliates with a Gousen (metal fairy). ASY's Gousen annihilates the creature after driving it into open ocean. Although successful, a surprise attack follows. A girl, floating in midair and glowing with radiance, strikes with a beam of light. This girl is "Rouran." She knows neither her identity, her origins, nor why whenever she senses the Gousen or Kyoushi (reanimated corpses) she transforms into an avenging angel. As Rouran worries about her mysterious existence, Tetsuya kindly watches over her in Tokyo Arcadia, a settlement of expatriates and dissidents. Who is this Rouran person? How will this story develop? Find the answers in Kikou Sennyo Rouran.

A seemingly normal but super radical gag family and their absurd misadventures in a normal town somewhere in Japan.