Hakuouki. It's a reverse harem but the romance is a subplot and most times any interaction is friendly and supportive. It's actually more of a historical documentary as you see the group's progression but because of the conflict and wars, fate and times are cruel. 2 reply
As basic as some of these are lol, I'd say:
*Anime*
-Plastic Memories
-Terror in Resonance
-Anohana
-Hotarubi no Mori e
-Shinsekai Yori
-Angel Beats!
-Charlotte
-A Silent Voice
-Your Name.
-Sword Art Online
*Manga*
-Spirit Circle
-To Your Eternity
-All You Need is Kill
-Ousama Game + Ousama Game: Kigen
-Hikaru no Go
-Kimi no Knife
Enjoy my...... reply
I guess for anime, no game no life zero, angel beats... I can't really remember anything else and from the manga, pandora hearts... again can't really remember, I have seen and read a lot of sad stuff but only a few manage to get a tear in my eye plus I don't really have the best memory when it comes to some stuff so rip, tho pandora hearts is a re...... reply