Please don't list this on a work's page as a trope. Examples can go on the work's YMMV tab.
Tear Jerker: Vampire Knight
Vampire Knight often makes me cry: when Ruka comes to Akatsuki in tears because Kaname is is being a Magnificent Bastard (which he usually is several people felt sad, because Ruka is usually shown to be a bit of an emotionless bitch. (Incidentally, after that scene she became a Broken Bird, poor thing). Also, and this is weird, but whenever Kaname slaps Aidou. For some reason (particularly when Ichio first turns up. Just Kaname's line of "I haven't taught him enough manners," and Aidou's expression of I will not cry, he does this to me all the time, dammit! made me want to MURDER Kaname Kuran. But, the weirdest Tear Jerker for me was at the end of the Fourth Volume's Night Class Side. Just... The fact that Aidou (again. He always makes me sad!) is sitting just staring blankly down, looking as though he's about to cry, and, because for that whole Night Class Side, he'd been all chirpy and hyper... The contrast was what made me sad...
Another Aidou-related example (different troper): when Kaname kills Aidou's father. I ship Kaname and Yuuki, so her reaction was heartwrenching as she watches the man she's pledged to kill a man. And a good one at that. And Aidou's face...' oh God, why Kaname,WHY?!?!
Yet another Aido related example. After Kaname kills Aidos father. Aido is in a room sulking and Zero comes in to tell him that he can leave if he wants to or can ask the Chariman for details. Aido proceeds to break down saying something along the lines of, "If I'm tormented by hatred for Kaname sama and his sister tooYuki, No I won't become like that, I won't become like you, no matter how hard it is right now" Zero then walks away, with his signature face of no emotion. Despite this tropers love for Zero, she was utterly broken by Aidos words and started to wonder whether Aido or Zero was stronger.
Yuuki and Zero's separation after the Rido battle. No moment in the manga had a bigger emphasize than when they team up to fight Rido, Zero pointing the gun at Yuuki after Rido's defeat, then proceeding to pull her in for a violent hug after Kaname's left and making an Anguished Declaration of Love before kissing her in a dramatic "falling" panel, then ending it with Yuuki proclaiming she will always run away from him if it gives him a reason to live. Couple that with the cover Hino drew of the two embracing in the middle of a blizzard with Zero's vines wrapped around Yuuki's Artemis and the caption "At the very utmost ends at this world... where we shall never again be together." Hino's own comment to that cover was that she wanted to make it feel like time itself had stopped for a moment. Just... awww...
The end of chapter 88, where Yuuki attempts to erase Zero's memories of her. Zero's desperate face while telling her stop and Yuuki's devastated face while telling him she's sorry might be the first real competitor to chapter 46 in terms of this story's tearjerkers.
So, why has nobody talked about Chapter 40/Vampire Knight Guilty episode 11, i.e. Ichiru's death? Zero has lived for about 5 years believing his entire family was dead, only to be reunited with his twin when said twin was clearly out to see him dead. In the lead up to the climax in the chapter/episode, you're shown how close they were in the past and that's already heartbreaking enough especially when you're first led to believe that Ichiru wants to kill Zero (shooting him with the Bloody Rose anyone?) Then, you realise that actually, despite everything, Ichiru's love towards Zero won out over his hate and he's come to force Zero to eat him so that Zero won't fall to Level E, will be able to live up to his destiny of being the strongest hunter in history and ultimately will be able to fulfill his goal of killing Rido and hence protecting Yuuki and still be alive at the end of it. Zero already hates being a vampire, and now he's just been told by his dying twin to DEAL. THE. FINAL. BLOW. TO. SAID. TWIN. The anime even makes him cry as he's preparing to bite Ichiru.