《聖羽舊約》是一款結合動作元素的第三人稱軌道射擊遊戲， 玩家將扮演聖日花教團教團中的人造天使「日之羽」，在充滿變異植物的末世中執行淨化任務。操作人造天使閃避彈幕及障礙，並運用其強大的淨化能力來消滅來襲的敵人 ，與夥伴「KAVI」趟上一段緊張刺激的飛行冒險。

FEATHER BIBLE

"FEATHER BIBLE" is a third-person rail shooter with action elements. Players take on the role of Hizunoha, an artificial angel of the Saint Nichika Order, tasked with a purification mission in a post-apocalyptic world overrun by mutated plants. They must skillfully evade bullet barrages and obstacles while harnessing Hizunoha’s powerful purification abilities to eliminate incoming enemies. Alongside their companion, KAVI, players embark on a thrilling and intense aerial adventure.