Glimpsing panties means the extinction of the human race?! High school student Yuta Iridatsu has an unfortunate, idiosyncratic condition. Seeing a girls panties gets him so excited that he faints. Certain circumstances cause Yuta to have an out-of-body experience, which he takes advantage of by peeping on the fellow residents of his apartment building and stopping time to play silly pranks. But in the end, will all of the residents work together to save the world?!