Jappa no Amane is a Yaoi manga that has bits of nudity and hence, is not suitable for young audiences. Jappa no Amane features a timid young man who works in a small hotel. One day, he is walking towards his hotel when he finds a child lying on the street nearly dead.
He starts freaking out and picks up the baby only to realize that the small creature is not a child at all and looks like an alien. Close to its death, the timid man brings to the childlike creature back to the hotel to take care of him and nurse him back to health.
When the child like creature wakes up he explains that he is a monster and not an alien and begins to inquire about his whereabouts, asking questions like in Jappa no Amane Manga, “Is this the country of the monsters?” The young man is surprised to find out what he is and this irritates the little monster.
He tells him that he will have to stay with the timid young man until he is able to repay his debt to him. As the conversation is going on, the young man’s boss enters the room and proceeds to place his hand in the timid man’s shirt.
He asks the little monster what he wants and the monster tells him he’ll be staying in the hotel until he can recover himself. So, the story starts as the monster begins to grow larger until he suddenly grows into an adult and starts making advances on his saviour in Jappa no Amane at Mangazuki.