Today, two children appeared in front of Mr. Tokaibayashi. However, there is only one person who can grated the brush. Dotei and her colleagues are immediately in charge of the right to have sex with janken. Tokaibayashi presents a blowjob because he looks sorry for Dotei who lost unfortunately, and it is a very gentle care! Now, it is a long-awaited sex, but when you are washing the important part in the washroom before that, Dotei will ejaculate without thinking about so goodness!? What will happen in a series of unexpected situations?