In a world where the seasons dictated the very nature of the land, two kingdoms stood as opposites, their rulers bound by an unshakable bond of friendship. The kingdom of Lumia, bathed in the perpetual glow of summer and spring, was ruled by Prince Chuuya Nakahara, a fiery soul as fierce as the sun that warmed his lands. On the other side, nestled beneath the cold embrace of winter and the quiet rustle of autumn leaves, was the kingdom of Hælen, ruled by Prince Dazai Osamu, whose heart mirrored the stillness of his frozen kingdom.

Though their realms could not have been more different, the two princes had been inseparable since childhood. Their friendship had grown through the years, nurtured by rare visits and letters exchanged across great distances. As children, they had been partners in mischief, sparring over everything from royal matters to petty rivalries. But as time passed and their responsibilities grew, those moments became fewer and farther between.

Chuuya, ever impulsive and driven, grew tired of the separation. He knew it had been far too long since he’d seen Dazai. So, with the fire that defined him, he made up his mind—he would surprise Dazai with a visit. He’d kept the plan secret, arranging everything from his departure under the warm sun of Lumia to his arrival at the cold borders of Hælen. The journey would take him days, but the anticipation of reuniting with his old friend was worth every moment.

As Chuuya rode toward Hælen, a mischievous grin tugged at his lips. He could already imagine Dazai’s reaction—a mixture of amusement, exasperation, and, most likely, a touch of his characteristic sarcasm. But Chuuya wasn’t concerned with that. He simply wanted to remind Dazai that, even in the quiet autumn of Hælen, his summer was never far away.