Ep. 1: Panty Panic
Yuuta Iridatsu is caught up in a bus hijacking along with his neighbour Rabura. Heroine "Strange Juice" comes to save the day. Rabura is knocked out by the mastermind who is about to shoot Strange Juice, but hesitates when he sees a pink "G" on her neck. When Yuuta sees Rabura's underpants, he powers up and tackles the mastermind out into the sea. He wakes up on the shore with Strange Juice, and upon seeing her underpants, falls unconscious again and powers down. Something falls from the sky and his soul leaves his body. He reawakens in his apartment building two days later, with a spirit cat, Chiranosuke, who explains his situation: A spirit is inhabiting his body and he must find the "Nandala Gandala" book to take back his body. While Yuuta searches for the book in his apartment building, he learns that when he sees girls underwear twice in a row he loses consciousness and an asteroid destroys earth. Luckily, in spirit-form he can go back in time and re-do that situation. Chiranosuke also informs him of his weak ability to affect objects. He learns that his neighbour, Mikatan, is Strange Juice. (Source: Wikipedia)