Re_Birthday is part of the Clockwork Lullaby series, not the Daughter of Evil series, so it might not even be connected. Even if it is connected, the series implies that everyone was horrible in their past lives and are being punished by becoming Vocaloids.
It's generally considered that Re_birthday is part of the Clockwork Lullaby series, while being a response to Regret Message, connection which mothy has confirmed in supporting materials. And it's more of a redemption. Len's forgiven from for his sins and given a chance for a new life (with the very people he'd killed/been killed/etc, even).
VOiCE. No matter how many tissues you have, it will never be enough.
Time Forgotten One by Kaito. It's about a statue doomed to spend his entire life waiting for his long-dead nakama.
At first, Reboot seems to be a relatively cheerful and relaxed song about a group of three friends going through their childhood together. Then one of them gets hit by a truck trying to retrieve a charm that flew off one of the girl's backpacks... The rest of the PV is absolutely heartwrenching.
The Kagamine twins seem to be the masters of this, with songs like the aforementioned "Kokoro", the follow-up, "Kokoro/Kiseki", and things like "Servant of Evil", "Recycle Bin" and the sequel, "Salvage". Special mention goes to "Proof of Life" and "Soundless Voice".
"Regret Message" (and "Daughter of White" makes it worse) But "Re_birthday" is there to make everything better!...assuming you actually interpret it to mean he DOES get better
"Prisoner" and "Paper Plane" are another two that break hearts as if they were fragile china. The highest-rated comment on "Paper Plane" is currently "3:20 total break down." Those of you who've seen the video just KNOW what that moment is. For those of you who haven't, it's when Len starts singing.Sob.
* Hello, Planet is extremely depressing, despite the upbeat tone.
Its writer has also penned Campanella, a slow, sweet song based off the equally Tear Jerker novel Milky Way Railroad (or Night on the Galactic Railroad, depending on your translation) during which Gumi invokes this trope, first with her attempts to express her feelings to her friend Campanella, even blasting off into space to search for him...but she knows he's dead. What makes it worse is that throughout the video, you see some flashbacks of her life with Campanella. Near the end, when the wham line finally hits, you see an image of a young Gumi watching a crowd of people holding a small box; meaning that she was actually there AT HIS FUNERAL. Tears increased tenfold.
And that same creator, Sasakure P, has recently come out with The Week End is Coming! set in the same universe as * Hello, Planet, shortly before the world ends, that has the same theme of trying to reach someone with your feelings too late. What is with this P and writing soul-crushingly depressing songs?...
*Sayonara, World's End is a much more melancholy telling of the same story in *Hello, Planet. Goodbye... goodbye...
Another song with similar post-apocalyptic robots and lonely rockets motifs is the (sadly untranslated) Summer Rocket.
Red Swamp Bottom. Miku is singing about being tortured in hell. To understand why anyone would nearly cry over it, see the rest of the Dark Woods Forest series and try not be at least sad over it.
Hell, Dark Woods Circus is mostly horror, but it's pretty tear-jerking by itself. For some people. Especially 2:30 onward. "It's fun!"
Especiallyif you know the context: To quote one Youtuber's comment,"I can only tell you that things like this has happend, and still does. Children are kidnapped, and deformed into freaks. For example, they could crush their bones so they grew together wrong, slice things of and more, and the children were also used for sexual services. And if they said no, or tried to escape, they got acid pour in their faces. That's what the flowers in the vid stands for." Now try watching that ending montage without crying. *sniff*
It's made even worse after you see the prequel, Wide Knowledge of the Late, Madness. Basically, it reveals that all the circus players were from an insane asylum. Len and Rin's heads were both sewn onto Rin's body, Kaito had the brain of a dog and was eating human flesh, and Miku watched it all happen with a childish curiosity. Just... *shudder*.
Are you a dog lover? Listen to Laika, which tells the story of the first animal in space. It's from Laika's point of view. The ending will shatter your heart.
Why Don't You Call Me Yet? is about the singer wanting the person she is in love with to call her, while being too afraid that he has forgotten who she is to call him herself. In the end of one of the PVs, Rin kneels on the floor, looking as if she has given up hope as the song ends. After a moment of silence, her phone goes off, to her disbelief. She answers it with a cheerful greeting, only for a final shot of her crying tears of joy to show up, leaving the viewer to assume that the man she loves has indeed called her.
There is also a fanmade pv that has Len playing the guy who has yet to call her back. It is eventually revealed that the reason why he missed their date was that he was at the doctor, finding out that the surgery he had to get to remove a brain tumor could potentially kill him or turn him into a brain-dead vegetable. He then avoids calling her because he's thinking of breaking off the relationship so that she won't be too hurt if he dies. The end of the video is Rin getting a call from Len when he's in the hospital after his surgery. I'm not a fan of the Rin x Len shipping by any means, but this video still made me bawl like a child.
For everyone who thought that "Disappearance of Hatsune Miku" was bad, try Teto's version. There are a few lyrical changes, but they make all the difference.
69 by Rin and Len. Rin is some form of doll that has lived for 69 years and is beginning to break down and die. Len realizes she is going to be gone soon and tells her that she's still beautiful even though she's falling apart and they both express their love for one another as the song goes on. Rin has an I Want My Beloved to Be Happy moment as she dies, thanking him for caring about her and telling him that even though she's gone, she wants him to continue to be happy and love again. The end of the PV implies that Len is about to suffer the same fate, so she won't be without him for too long.
Alluring Secret~White Vow, Miku's response song to Alluring Secret~Black Vow, is utterly heartbreaking. "I can take this black dress off someday..." *Sniff*
Caoin, by Luka. The word 'caoin' is Old Irish for 'lament', so you should know what to expect.
+REVERSE and -ERROR by Lily. In +REVERSE, Lily realizes she's fading away, and says, "Even in the flow of time, it seems I can't go against it...When I first realized it by being loved..." In -ERROR, Lily is still dying, and she realizes this, too. She says goodbye to her friends and master...and eventually gets mad because it feels like her master doesn't care. It ends with her saying, "But I still want to breath...Just like the end of the dream I showed you, even works are stuck, ERROR."
Meltdown by Rin, despite its energetic and happy-ish beat, has a rather depressing meaning. It's vaguely about her future self feeling remorse for her past actions, and she strangles her young self (her past). She can't take it anymore as the timer ticks down to her "meltdown" when she jumps into a nuclear reactor. Well, at least there's the more positive interpretation of Rin forgiving herself...
"Rolling Girl". There are a myriad of interpretations for it, but most of them are depressing.
This version, in which a fan blended five different renditions of the song together into a chorus, is possibly even more depressing, especially during the refrain.
Miku's Fifteen Years Pursuing A Cute Boy starts out as a nice song about a more than slightly obsessed girl sending a boy poems, and becoming something of a literary genius because of her practice. Cue the Wham Line.
Ditto for VY 2's cover by the same artist, now with a PV.
This version of Pierrot. The kind clown who did all he could to try and make the girl he cared for happy presumably dies, though there is a happier interpretation: His saying that the "lying Pierrot has now vanished" may only refer to the side of him that lied all the time and wore the mask. The last picture in the PV suggests that he may still be alive and happy with his friend.
This PV of Pierrot, which actually remains true to the song's lyrics, unlike the above (although beautifully animated) PV. There's something about the comforting words of a child making the pierrot shed his facade that hits me every time.
There's this song, Somewhere, people are dying. The refrain has lines along of "Somewhere, people are dying / And it's of no concern to me / But I'm still sad". oh, and the person also apologizes to God for being born, not being dead, merely living and being happy.
Karakuri Pierrot by Miku. It's about Miku being stood up by the guy she loves, and how even though to him she is just a clown, she's content for him to continue manipulating her.
The Heap Princess and Apostrophe "What do you call it when there's not a soul to love you? No one will love me; I'm all alone." This is one heart-wrenching song because it's about a girl left behind from a war between machines and humans. She thought she was the only person alive until she met a kind robot. "Don't look at me you'll make me cry so many tears", the reason why she says this is because the gentle robot reminds her of someone she used to love [possibly her brother] who died. The robot gets into a fight with other robots because the drones that were left over had killed the girl and the robot still wants to protect her even if it means dying, too. "No one has ever doomed with no one to love them. And for you...I was the one who loved you."
Cinderella ~another story~ is pretty touching as well. It puts a tragic twist to the classic fairytale in that Cinderella (Rin) has been transformed into a white cat for not returning from the ball at midnight, rendering her forever separated with the prince (Len). This is sung as they both remember the instant they had together, fully aware of this fact.
oFFENCe. The whole song is about Miku's regret and guilt after she killed her lover in a fit of jealous rage- describing how she still feels his presence and how she can never forget the moment she murdered him. And to top it off, the final verse implies she kills herself too.
In the first Spring... I met you with an innocent smile on your face,
In the first Summer... You held me tightly in your arms,
In the first Autumn... We swore to "stay together forever"
In the first Winter... Even though... We promised....
But in the third Summer... You stopped laughing,
And in the third Autumn... You no longer held me in your arms,
In the third Winter...you "belonged to someone else",
The smile of you, who flew out of this window and died,
I won't ever forget it
Not even tomorrow.
Ayano's Theory of Happiness takes the pain of Transparent Answer and multiplies it by about a hundred. For anybody who's listened to other songs in the Kagerou Project and know a bit about the characters, it will be an absolute heartbreaker, but even without knowing anything about the project, it's still a very sweet, sorrowful song.
Dear Mother by Miku. "Thank you, mother...thank you, mother...I finally understand...please watch over me now...for I am now a mother too."Aww...
Time-Warped After Chopping My Stag Beetle has a funny title and is, at least two-thirds of the way, a random-sounding, amusing, song. Then, the Tear Jerker hits when Gumi meets her future self. She tells Gumi that, from now on, she'll have regrets and get hurt, but...
But if, for each of these,
You waste your life looking back,
One day, it will give you a terrible fever.
I want to just let things go.
So, return as if you never came,
And I'll surely be happy.
HEAVEN can have you in tears from the get-go, because the first scene is the man's death. Simply put, the song is about a couple who have been together since high school and the woman realizes that she's slowly losing her vision. However, it doesn't put a rift in their relationship, and the man still proposes to her. The woman's vision can be cured with an operation, but sadly, once her vision is cured she learns her lover is dead.
Kudryavka. Sung from the POV of Kudryavka, alias Laika, it's the sweet, uncomprehending tone that gets you.
Night Walker is a rather eerie example of a dead man who drags himself out of his grave to be with the love of his life, not remembering anything other than that he loves her. Over the course of the song he remembers more about such as her name... and the fact that she killed him. Despite that, he still drags himself to her door not out of revenge, but because he still loves her.
"Lie", sung by Megurine Luka. While you're at it, see the response song "I (Love)", sung by GUMI.
"Clockworker -Recollective Music Box-" A sort of response to Luka's Recollective Music Box by Kiyoteru Hiyama. Even if you don't know the translation and the meaning of the lyrics, that's just painful to hear. And when you do know... Well, it's even worse, then.
Interviewer by Luka, like Hello, How Are You?, it might hit some people a bit too close to home. This English Cover of the song is also just as depressing as the original, if not more.
Your Sky is Sorrowful. You can see the ending coming even from a mile away, especially with the monologue at the beginning by the boy's now-grown-up little brother. But it still hits HARD. Especially when you realize that the boy is a kamikaze pilot and have no chance of surviving the song.
Steel Bird follows the same vein as a song about war. The ending can be quite heartbreaking....
The Steel Bird was released, his wings flying towards the eternal sky
The dead young warrior, unknown of, still becomes a bird and flies across the sky
Fly! Even through distant journeys, the wingless bird sings far away
Flutter the silver wings on your back, feelings disappearing into the morning sun's sky
This music video for Kaito's cover of Donut Hole hits hard. Especially if you weren't expecting anything different from the normal song. It also wins a prize for managing to make Senbonzakuraeven sadder.
A Teacher, Detained featuring flower. The Tear Jerker elements take a bit of time to sink in, but once you grasp the backstory and meaning of the lyrics it's a real gut punch.
You're a Useless Child may hit home for people who were abused by their parents. Told in the perspective of the mother, her son grows up his whole life while she grasps him tightly through the usage of crushing verbal abuse, making him feel more and more worthless. She tells him that she will take care of him and that only by staying with her will he ever have any chance in life. Growing up to believe this, he stays even though he feels depressed about it. This continues on and on, with the abuse getting worse and worse until he finally commits suicide, feeling that he has no purpose in life, and only after he kills himself does the mother realize what she has done wrong.
Haku sings a very sad song in "As I'm Not Human", in which she laments that she will never bear children because she's an android. The lyrics itself are full of innuendo, but this only makes it even more of a tearjerker because sex has become something meaningless due to her impossibility of experiencing true human sensations.