Also, as many fangirls tend to forget, there is an actual plot in this series. Based on a series of Japanese novels.
And the main female character in the series wants Sion's sperm.
Girl 2: Yes, and it was very, very heterosexual.
Dumb fangirl: THERE WASN'T ENOUGH KAWAII BUTTSEX IN THIS EPISODE
Fangirl with brain: Uhhh, you do realize that No. 6 also actually has a plot?