User blog comment:Imouto-tan/Emily Saotome/@comment-4867780-20160713134057/@comment-26362471-20160715035748

Yup so he just let them go so he can focus on his main experiment and other obstacles in his way at the time. He only let the test subjects be treated nicely, because the scientist were also their mothers and he wanted them to have a good mental health so that he can try to break their minds himself (which he failed at hard).

Hehehe okie dokie :D