Three close mates roam the hallways of the all-boys Sanada North High School: the quirky ringleader with a hyperactive imagination Hidenori, the passionate Yoshitake, and the reasonable and prudent Tadakuni. Giant robots, genuine love, and deep drama occupy their lives... At least in their vivid imaginations. In actuality, they are just three average men passing the time, but who said ordinary life couldn't be interesting? Danshi Koukousei no Nichijou is filled with weird yet delightfully realistic events that are anything from routine, whether it's a complex RPG reenactment or an unexpected romantic rendezvous on the riverside at twilight.