These days, there are a lot of people around me who are doing it, so I'm really worried. I've wanted to do it for a long time... (hairline = M-shaped side..) If there are people who have done it, please let me know what it's like. Just looking at the people around me, I've already done it. I should do it (everything went well and I'm satisfied... hahaha) but I'm scared to do it again hahahahahahahaha