[Taken From Aku Tenshi]:

Sunao and I are childhood friends and also college roommates. Due to the Culture Festival, our class decided that we were going to perform "Swan Lake" and made me play the part of the "prince". Sunao, being so slender and delicate to the point that he could be mistaken for a girl, was, of course, chosen to play the role of the "princess". But since he hates to deal with people, he didn't like that idea too much...

A trouble-filled campus boys love story!! Based on a Boys Love game with the name, Sukisho or Sukisyo.

The story revolves around Nya-tan, the cat of Chinese astrology who wants to become a member of the Chinese zodiac. Nya-tan is simple and suffers from memory loss, and she tries various foolish ways to become a member. She meets Takeru Tendo, a high school student who lives alone in Akihabara, and becomes a freeloader at his house. Little by little, she gets closer to her goal.

(Source: ANN)

Inorihime, Maritza, the noble existence who inherits the "Inori no Uta" [Prayer Song]. At a single chance encounter, she is captivated by Prince Azurite, despite their meeting being forbidden. The two of them are exposed to cruel fate… Now, the love that dwells in their hearts, an unseen door opens!
(Source: Fateful Encounters)