An art of a female Raijin who is spending the heat wave season in Japan. Raijin is one of the monsters called "Yokai" in the Japanese folklore. "Rai" means "thunder", and "Jin" is a "God" in Japanese. The design of the Raijin is almost same as a typical Oni (Japanese-demon). The Raijin is respected as a rain deity since the ancient times. She is considering the mask policy of the human society.