Nay Chi Oo (; born Htoo Pyae Sone Myint on 25 January 1992) is a Burmese beauty blogger, actress, make-up artist, fashion model and businesswoman. She is best known for her makeup tutorial videos and her beauty blog, "beautybynaychi" on Facebook. Nay Chi Oo featured on The Myanmar Times "Top 10 Bloggers" list in 2019. Early life and education Nay Chi Oo was born on 25 January 1992 in Yangon, Myanmar into a military family. She is the eldest daughter of Myo Myint Sein, a businessman and former military official, and his wife Than Than Swe, a botanist and businesswomen. Nay Chi Oo has a younger sister Sein Lae Yadanar and a younger brother. She attended high school at Practising School Yangon Institute of Education and graduated with GCE Advanced Level from Cambridge Tutors College in 2013, and MSc Forensic Medical Sciences from University of Bradford. While still in university, she has served as Student president of Cambridge Tutors College. She is currently studying MBA at Global MBA University of the Thai Chamber of Commerce. Career 2017: As a beauty blogger Nay Chi Oo using popular social networking website Facebook to her beauty blogger career. In February 2017, she began posting make-up tutorials on Facebook under the page name, beautybynaychi. She regularly posts make-up tutorials, make-up first impressions, beauty tips and product reviews. End of the year, she became one of the most popular beauty bloggers in Myanmar. Nay Chi Oo participated as a judge in Make me Beautiful by L'Oréal, a reality make-up contest TV show on selected make-up artists in Myanmar, and also in New Face Actor Choice contest of Kha Thone Lone film production in 2018. 2018–present: Acting debut and breaking into the big screen Rising to fame in 2018, she became an actress. She made her acting debut with a leading in the big-screen film Yan Thu (Rivals), alongside Nay Min and Wutt Hmone Shwe Yi, directed by Mee Phwar in February 2018 which premiered in Myanmar cinemas on 14 December 2018. The film received critical acclaim and positive reviews for her portrayal of Lay Pyay Nu Thway, which led to increased popularity for her. In June 2018, she starred in her second big-screen film Ae The (The Guest) where she played the leading role with Shwe Htoo and Shwe Hmone Yati, which premiered in Myanmar cinemas on 30 May 2019. In January 2019, she starred