Rare manga/films with "gay" episodes/topics

Hello. I search for a list or recommendations of manga/films with gay or straight character in sexual or near to it connections with the same sex persons. It can be physical and/or soul attraction, with or without sex (shown or meant). It can be a solo episode or one of the topics.

I'm not asking for lovey-dovey manga, but for ones with a serious plot and realistic characters. I'm interested in any topics, including religion, rape, abuse, war, slavery, age gape. Anything that hurts is fine because life itself hurts. For example, a solo episode of war rape, or an unexpected same sex love interest in harem-like manga, or an attraction to the younger samurai.

Manga based on today's sanctimony about no-cheating, consent, healthy-relationships isn't what I'm asking. I'm asking for reality or reality made by author.

The cinematic art is also appreciating.

Good examples in manga:

Make the Exorcist Fall in Love
Boku no Chikyuu o Mamotte
Okaeri Alice
Rabuka
Onnanoko
Marquis de...
Sadistic Beauty
Host is Down
Eiyuu to Shounen
The Mean Boy
The Beast Must Die
I'll Be Here for You
Muchuu sa, Kimi ni.
Shintan Kairou
Shimanami Tasogare
Smells Like Green Spirit
Dounika Naru Hibi
Kyuuso wa Cheese no Yume o Miru

Good examples in anime:

Kenpuu Denki Berserk
Sentou Yousei Yukikaze
Moyashimon
Shigurui
Shinseiki Evangelion
Texhnolyze
Top Secret: The Revelation (first couple of episodes are horrible, later it blooms).