This is based on opinion. Please don't list it on a work's trope example list.
Tear Jerker / Mitadake High
Some players tend to have their characters go through so much that you just want to cry for them sometimes!
Getting close to someone in the game tends to end badly, as that character often gets separated or murdered, or you are the one that hits the bucket.
More of an OOC tear jerker, but if these games were first based on Higurashi, then one could see it as that the characters are locked in a "Groundhog Day" Loop . Just think about that a second.
Even worse, every loop, with the exception of certain characteristics a server may all agree are always part of one character, they ALWAYS have a personality change every loop. Which can be horrifing if you think of the number of rounds some servers will go through with all the same players.
Some good roleplayers will emote their character's death if they have been sufficiently wounded. This is particularly poignant at the end of a round, especially if said person had just stopped the murderer and things were looking on the positive.