A lot of nudity, sexual innuendo, and all around pervertedness, both male and female.
EPISODE 1
The protagonist meets a woman in a red colored dress. The dress is very sensual and a lot of cleavage is revealed. Also, the woman's nipples pokes out through the dress. The protagonist stares at her breasts in a perverted way.
Later, he sees her once again in an office in the same dress. Again he stares at her breasts.
The protagonist memorizes the alphabets by referring each letter to sexual acts. While he thinks the letters one by one, the sexual acts are shown in background. A little nudity is shown briefly.