I came to home an hour ago. Sooin was crying and Yurang was depressed. I hugged Sooin and played with him. Jian tried to interfere to us. I had breakfast and will sleep soon. Today's release version was more stable than before. Althoug I have some trouble with Mr. Kim, it might be inevitable. I will go my way and I have been doing. Through this project, I have learned that making something well is totally different from just preparing for demo. The former must not allow any bug and especially crash or hangout occurence. And that is very hard and impossible.