Tsukasa, a bright royal prince, and Rui, a calm and reserved genius, were secretly dating. They truly loved each other. The pair was like a white lily and black lily.

Tsukasa was in some arranged marriage with a girl that he did not want to do, he was planning to run away with Rui to live a loving and peaceful life. Yet, the kingdom found out and assasinated Rui, as they found him a distraction.

Now, Tsukasa was crying as he held the dying Rui in his arms in the garden they loved.