"Onii-chan, let's make it a long time, shall we?" Despite loving each other, the two, brother and sister, have lived separately without being bound by their relationship. After time has passed, they meet again, remember the heat of that time, and the sister wishes to be lusted after by her brother once more. The brother, who wishes to embrace his sister once more, who has soft and warm breasts. Is it because they are blood relatives that they burn up? A story of incest that definitely existed in this world.
