Ichiro Hanada is a hyperactive little boy who lives with his parents, sister, and grandfather in a rural town. He is always up to some kind of mischief, often teasing his sister or making rude comments to others. Consequently, his mother constantly scolds him, and even the neighbours express disturbance from time to time on how rowdy he can be. One day, after pulling a terrible prank, Ichiro sprints onto the streets as his mother chases him. He steals a nearby bicycle and takes on a dangerous route, eventually being hit by a truck. Miraculously, he survives the crash, requiring nine stitches to the back of his head and balding for the surgery. However, the near-death experience gains him the ability to see ghosts—the last thing he needs in his life. Since Ichiro is the only one who can communicate with them, several ghosts of people who have recently died come to him, seeking help to fulfill their last wishes before achieving enlightenment. Each adventure with a ghost leaves the young and curious boy with a different lesson that gradually makes him wiser.

Self-professed "home security guard" Mahiro Oyama has not left his home in years, secluding himself in his room playing erotic visual novels. This depraved lifestyle causes his prodigious sister, Mihari, to worry about his well-being. In hopes of solving this problem, she devises a plan to rehabilitate him back to normalcy. The first part of Mihari's plan is to concoct a medicine that changes her brother's biological constitution into a bona fide female, much to Mahiro's vehement dismay. Stuck in this predicament, Mahiro has no choice but to live out his life as a cute girl until the effect wears off—if it ever does.

Self-professed "home security guard" Mahiro Oyama has not left his home in years, secluding himself in his room playing erotic visual novels. This depraved lifestyle causes his prodigious sister, Mihari, to worry about his well-being. In hopes of solving this problem, she devises a plan to rehabilitate him back to normalcy. The first part of Mihari's plan is to concoct a medicine that changes her brother's biological constitution into a bona fide female, much to Mahiro's vehement dismay. Stuck in this predicament, Mahiro has no choice but to live out his life as a cute girl until the effect wears off—if it ever does.

On a rainy afternoon, a male high school student awakens freezing on the streets with no memory of how he got there. His classmate and crush, Karen Inukai, finds him and takes him back to her home where, to his surprise, she starts to undress. She seems intent on bathing with him, though he has no idea why. When she holds him once more, he catches a glimpse of himself in the mirror—discovering that he has turned into a dog! Inukai adopts the puppy and names him Pochita. Now, he must adjust to life as a dog and figure out how to get out of this strange predicament. But while he mulls over an escape plan, Pochita sees a whole new side to Inukai that he never saw at school.