JUL-284 Rainstorm A night alone with my son's tutor Shirone Sato

I decided to ask Mr. Shirone to be a tutor for my son who is aiming to enter a national university. Shirone-san is beautiful and kind, and seems to be able to understand her studies easily, and her son, who is full of motivation, is improving his grades. Shirone was scheduled to come on this day as well, as a large typhoon was approaching. However, the Shinkansen is suspended...My son can't return from his school trip, and Shirone-san probably won't come either.