hello? I did it 3 days ago at ㅇㅂㄴ in Apgujeong, where Director Lee ㅂㄱ does it. I am 47 years old and middle aged. If I was going to do this, I should have done it when I was young. Why do I not have the courage? Haha. I am 170cm tall and weigh 57kg. I put in 350 and 375 cc of Mentor's drops , but I woke up with severe pain while I was sleeping. It's much more comfortable to sit.