Tatsuki is in fact the successor to Ryu-Oh, the dragon king, and possesses the power of the Nyoi-Houshu, a magical dagger. Ohta is a Zashiki Warashi, a protective house-spirit without a home and is also Tatsuki's subservient lover. When their human classmate Koushi Misaki accidentally witness the two having sex, he mistakenly believes that Tatsuki is forcing the quiet Ohta into it, and he resolves to break the two apart. Tatsuki and Ohta have escaped to the human realm to avoid Tatsuki's marriage, which would have to take place if he is to become the new ruler. Even when he learns that Ryu-Oh is dying, Tatsuki refuses to return to his own realm. But when Ohta is gravely injured in a car accident, the only way to save him is to return to the home world. There, Ohta recovers, and it is discovered that his power of purification is able to restore the purity of Ryu-Oh's Houshu (treasure-sphere, the source of his magical power), thus bringing Ryu-oh back to health.

    They go to college together, they're in the same year, and they even work at the same place! But when Samejima confesses his feelings run deeper, their relationship explodes in passion... and irritation! Sasahara tries to ignore Samejima, and he tells him to wake up - he tries to accept him, and Samejima plays hard to get. It's enough to drive a man crazy, in more way than one!

    On the evening of the Christmas party, friends force Eugene to dress as princess. The blonde prince Willis attends the same university as Eugene, upon meeting the cool princess says, "I would like to do everything for you." Eugene’s school life is about to suffer the attack of the rich Prince Willis!

    Despite Saeki-sensei unsociable, cold and unfeeling attitude, Morio finds himself following his every move. But does Morio simply admire his new teacher, or does he desire something more...

    The man's name is Tsubaki Nishijima, occupation novelist. In exchange for crippling his arm, Tsubaki demands Yuta work like a slave every day! Today's job is to take exact dictation of Tsubaki's words. Whaaat?! What's with this perverted depiction of... Isn't this sexual harassment?!