The president and the evil Gaki Student Association

Sekai monster Saeki yumika appears in the president's series of color. Saeki, who tried to use the power of his own power, would be able to bring down the officers of the student council, but his son's cheat was known to them and he was attacked by counterattack. Saeki who fell in the resistance to the evil Gaki was made to crumble in the restroom and it crashed until pleading for their semen... It is a prerequisite that she is proud of the strongest class eroticism in the series.