Add explanation to sta/book
Add explanation to sta/book

ttdoda/MyFleetGirls,ponkotuy/MyFleetGirls,ttdoda/MyFleetGirls,ponkotuy/MyFleetGirls,ponkotuy/MyFleetGirls,ponkotuy/MyFleetGirls,ttdoda/MyFleetGirls,ttdoda/MyFleetGirls