A man and a woman are stuck in a snowy mountain and have to take shelter in a cave. Due to the cold, they have no choice but to keep each other warm by sharing body heat...

Yuki, who reincarnated in another world as a saint, was made to join the Heroes' Party to subdue the Demon Lord. However, far from being treated well, she, the only non-combatant of the group, was forced to ...