《失落之子》是与《全能之神》同风格但采用了现代世界观的趣味JRPG游戏，作品讲述了偶然获得捕获并驱使星幽体的住热工调查天魔抗争的怪异真相的故事。

继承了《幻境神界》谱系之神话构想 RPG，是一部舞台移至现代，描述选民「伊吹隼人」起身面对「天使」、「恶魔」与「堕天使」三方角力、展开于人间界之天魔抗争的黑暗奇幻故事。身为超自然现象杂志社记者的隼人，在某次事件的取材过程中被授与了一把可捕获并驱使星幽体（天使、恶魔、堕天使）的神具「捕捉鎗」。与自天界被派遣至人间的天使「露雅」一起调查怪异事件的隼人，他所面对的天魔抗争的真相究竟是？

Occult journalist, Hayato Ibuki, encounters a strange girl during his investigations into a series of mysterious suicides in Tokyo. She implores that Hayato must live, before bestowing upon him a mystical device that allows him to capture celestial and arcane creatures. He is now thrust into a world beyond our own, home to horrific demons and celestial beings. In it, he must delve into dungeons called Layers and solve the mystery of the device. Where his journey leads him could decide the fate