The spring night is too short, girl, move forward!

In the ancient Kyoto, a wonderful journey of love is unfolding. In spring, a black-haired girl embarks on a night trip to find fake electric brandy, but her senior is knocked unconscious by a koi carp that falls from the sky; in summer, a girl searches for her beloved childhood picture books at a used book market, while her senior faces a cruel hot pot hell; in autumn, a girl carrying a red carp transforms into a roly-poly princess, and meets her senior who desperately plays the role of the stubborn king on the stage of the school festival; in winter, a girl holding a dream cold medicine defeats the God of Colds, and flies into the sky of Kyoto with her senior...