Like snow falling in summer, like a cicada lamenting the coming of winter... In a town watched over by a whale in the sky... the extraordinary is made ordinary. Spectacles that could never be given form are instead given flesh and soul. And in their midst, the story of a miracle that comes to pass in this town of miracles incarnate... For Kuonji, this newly-discovered vision is a thing of wonder and fright – a sentiment not shared by his peers. Under its watchful gaze, Kuonji chats with and hangs out with his somewhat unusual friends. Whether it's with Nina and her striped panties, cat-loving Sacchan, the strange alien Allen or a variety of other busty, skimpily-dressed babes, Kuonji finds himself in the middle of ecchi situations galore! Welcome to the world of Final Examination Kujira. Based on a game by Circus.

Kitarou is a youkai boy born in a cemetery, and aside from his mostly-decayed father, the last living member of the Ghost tribe. He is missing his left eye, but his hair usually covers the empty socket. He fights for peace between humans and youkai, which generally involves protecting the former from the wiles of the latter. This version of the Kitarou story is based on the original Hakaba Kitarou manga, the manga which inspired the popular Gegege no Kitarou series in the late 60's.

Once respected as the Demon Realm's second greatest authority, the Demon King's aide, Jahy, ruled her subjects with fear. But when a magical girl attacks and destroys a mystic gem containing massive power, the Demon Realm is destroyed. Although she survives, Jahy has lost almost all of her powers and finds herself stranded in the human world with a childlike appearance. In order to gather more mystic gems so that she can permanently restore both her original form and the Demon Realm, Jahy will have to adjust to her new life and deal with everyday problems that she has never experienced before. From working to pay for living expenses to arguing with her landlord whenever her rent is late, the great Jahy will not be discouraged!

In an old mythical world, there reside spirit-like beings who oversee the natural order of the mortal realm. One of them, a young girl named Chun, has just come of age and must undergo her rite of passage by experiencing the human world for herself. While there, she gets caught in a fishing net during a storm and is rescued by a human boy.

However, the boy ends up drowning during the incident, and Chun returns to her realm full of guilt. Afterwards, she meets the Soul Keeper and decides to revive the boy in exchange for a part of her lifespan. Little does she know, meddling with the natural order of the world has severe consequences.

Da Yu Hai Tang is a story about sacrifice and redemption as Chun comes to terms with the limitations of her powers and deals with death, love, and her own emotions. She must decide if she will sacrifice everything to save the human boy or forsake her moral obligation for the order of the world.