日本にも数少ない長命な亜人種のひとり、光谷さん。現代の暮らしにいまいち疎い彼女は学び直しのため、齢200（だいたい）にして女子高生に！種族特有の美美しい容姿と、ほんわか癒し系の性格で、みんなの心を鷲掴みにするハイスクールコメディ！
Ms. Mitsuya is one of the few long-lived demi-humans in Japan. She is not very familiar with modern life, so in order to relearn, she became a high school student at the age of 200 (approximately)! With her race’s unique beautiful appearance and her warm and soothing personality, she grabs everyone’s hearts in this high school comedy!
