Kongjui, who had been living alone with her father, welcomes a stepmother and a stepsister called Patchui into her life. When her father is out, the stepmother and Patchui make her do all the housework and the stepmother believes all of Patchui's lies and beats Kongjui mercilessly. When talks of marriage between Kongjui and the son of a respectable family come out one day, the stepmother does everything in her power to get Patchui married to the young man. Unaware of her stepmother's plans, Kongjui runs into the young man in the woods and the two fall in love.

In this adaptation of a manga by Fumi Shibama, itself a retelling of a 1972 manga by Kazuo Kamimura (the original Age of Cohabitation whose existence is implied by the "new" in this title), Honda has been living with Eri for two years and debates whether or not he should ask her to marry him.

The protagonists of the series are the three Kisugi sisters—Hitomi, Rui and Ai—who run a café called Cat's Eye. The sisters lead a double life as a trio of highly skilled art thieves, leaving cards with the name "Cat's Eye" at the scene of their crimes. They steal works of art that belonged to their long-missing father, Heinz who was a famous art collector during the Nazi regime, in the hopes of him contacting them. Toshio, the police officer investigating this case is the fiancé of Hitomi. He also swears to capture and bring down the Cat's Eye Gang.

1887, at a remote, elite boarding school in France: Serge Battour returns after his graduation, and remembers the days of his youth... 1880, at the same school: Son of a viscount and a Roma prostitute (both deceased), Serge is intelligent, sweet, talented, and alienated by his family due to his heritage. Upon being sent to his new school, he rooms with Gilbert Cocteau, a gorgeous loner of a boy who sells his body for reasons unknown. Serge's attempts to reach out to Gilbert fail spectacularly, and yet there is something in both of them that attracts them to each other.