Harukanaru Toki no Naka de (2000) is an otome adventure game, the first installment in the Haruka series, the starting title for the second and longest Neoromance IP. It is the game which receives the most outside coverage and spin-offs within the series.

At the time of the game's conception Heian period based stories were receiving an explosion of popularity in the Japanese entertainment industry. Ruby Party used the trends to their advantage to create their first Japanese history based IP. Members wished for the game to keep the same simulation elements as its predecessor [Angelique] yet thought it better to include role-playing game elements which were still in high demand with the female fanbase. To further distinguish it from their first work, members sought to highlight the seasonal beauty of spring and summer through the lens of Heian aesthetics. (stolen from the Koei Tecmo Wiki)