One autumn evening at a mysterious ramen stand behind the Shimogamo Shrine, a lonely third-year college student bumps into a man with an eggplant-shaped head who calls himself a god of matrimony. Meeting this man causes the student to reflect upon his past two years at college—two years bitterly spent trying to break up couples on campus with his only friend Ozu, a ghoulish-looking man seemingly set on making his life as miserable as possible. Resolving to make the most out of the rest of his college life, the student attempts to ask out the unsociable but kind-hearted underclassman Akashi, yet fails to follow through, prompting him to regret not living out his college life differently. As soon as this thought passes through his head, however, he is hurtled through time and space to the beginning of his years at college and given another chance to live his life. Surreal, artistic, and mind-bending, Yojouhan Shinwa Taikei chronicles the misadventures of a young man on a journey to make friends, find love, and experience the rose-colored campus life he always dreamed of.

On a hot summer day in Kyoto, a young man walks toward his apartment, dreaming of turning on the air conditioner and cooling down. But before he can turn his dream into reality, disaster naturally strikes in the form of Ozu, who spills soda all over the remote. With the air conditioner rendered completely unusable, the man and his friends are left to suffer in the terrible August heat. Just when all hope seems lost, the group finds a true-to-life time machine in their storage room. Not knowing the dire consequences of doing so, they decide to travel back to the past and grab the remote before Ozu even has a chance to destroy it. What awaits them on the other side is a staggering adventure none of them are prepared for.

Inaba Yuushi's parents died in his first year of middle school, and he moved in with his relatives. Though they did care for him, he could tell he was a burden. After he graduated, he happily prepared to move to a high school with a dormitory. Unfortunately, the dormitory burned to the ground before he could move in! Yuushi doesn't want to live with his grudging relatives, but it's rough finding lodging as an orphaned student with little money. He finally finds a room in a nice old building which seems too good to be true. The catch is that it is a Monster House, a place where humans and supernatural creatures—ghosts, mononoke, etc.—live together. Another high schooler lives there, a cute girl named Akine, and she's completely unfazed by the monsters. In fact, she can even exorcise evil spirits! Yuushi's high school life just got much stranger than he ever bargained for! (Source: MangaHelpers)