During a festival happening in the white lily kingdom, the royals decided it would be a good idea to invite the dark lily's monarchs to strengthen their alliance. Hence why Rui was there in the first place. Rui was always more reserved and kept to himself, so while his parents were in a meeting with the others he was simply admiring the festival lights from the top tower. Before the purple haired could even think to himself he felt some eyes on him, just to freeze as soon as he noticed that the one who was staring was no other than the white lily's heir Tsukasa.