2015年春节

Without warning, millions of mysterious alien "doors" suddenly appear around the globe. In a rush to determine the reason for their arrival, mankind must work together to understand the purpose of these cosmic anomalies. Bizarre incidences occurring around the sentient doors leads humanity to question their own existence and an altered reality as they attempt to enter them.。废柴女神莉丝塔要负责拯救超难模式的世界。 虽然成功召唤出能力值高到犯规的勇者圣哉， 没想到他却谨慎到超乎想象…… 「我要三副盔甲。 一副拿来穿，一副备用，还有一副是备用不见时的备用。」 不仅囤积异常的库存，还自主训练到满等为止， 谨慎到连打史莱姆都全力以赴！ 如此谨慎的勇者和被他耍得团团转的女神，即将展开冒险旅程！。