I don't think she's a celebrity, but the term we can use to talk about her is a lovely one, "the girl next door." She probably doesn't live next door to you, but this term has to do with someone who is wholesome. Yes, they are pretty or cute, but they are wholesome. They're not a secret spy in the night. No, they're just a wholesome person, unassuming, charming, and you just love them because they're not extremely special, but they're wonderful.
term /tɜːrm/ n)用語、期間
a lovely one 素敵な人
wholesome /'həƱlsəm/ adj)健全な whole:全般的に some:健康
celebrity /sə'lebrəti/ n)有名人