Ojisan to Renai Mikeiken Onnaおじさんと恋愛未経験女

I, who has minus 530,000 feminine charm, got a boyfriend who is older than me...!! Fumi, 24 years old, has no feminine charm. Her boyfriend, Mr. Asada, who she met on a blind date, is 36 years old. First boyfriend, first date. Little by little, they become boyfriend and girlfriend. I can't stop blushing and it's frustrating!! A fluttering love story for beginners.