(Thank you very much to 'Kaede no Chōrei', 'Yan Yu Jiangnan', '＜(-︿-)＞', 'Icebound Thunder Dragon', 'Pokémon', '☆生☆', and 'Youcai Luobo' for their rewards!)
"Whoosh—!"
A piercing shriek tore through the sky and vanished in an instant. A massive object streaked through the air amid trembling turbulence, leaving a trail of cloud in its wake as it shot toward the distance at a breathtaking speed.
Watching the scenery around them rapidly fall away behind them, Yekusaya and Yuzuru leaned over the railing of the airship's deck. While enjoying the breeze, they pointed at the passing sights and chatted as though discussing ordinary daily matters.
Hinagiku and Mikoto found the Yamai sisters' interactions amusing, yet somewhat enviable—their intimacy at times rivaling that of lovers, their noisy bickering and pinching at others, their playful teasing, and even the moments when they glared fiercely at each other.
Wu Yan had told Hinagiku and Mikoto a little about the Yamai sisters. Naturally, they knew that the twin sisters had not only once been a single entity that split apart, but had also fought each other over the fate that decreed only one of them could remain.
However, the meaning behind their fight was completely different from an ordinary struggle for life and death.
If they had been any other two people, knowing that they would eventually merge into one and that only one could survive, they would surely have desperately tried to kill the other for their own survival.
But for the Yamai sisters, their battle against each other had been to fulfill the other, to sacrifice themselves, and to let the other live.
The Yamai sisters had only become Wu Yan's summoned characters not long ago and followed him to Sparlier World.
The moment they arrived in Sparlier World, the Yamai sisters entered a