Puella Magi Kazumi Magica/Tear Jerker

Many fans have made this same face while reading this series.

In keeping with the theme of breaking your heart the parent series started, Kazumi Magica will make you cry like a little girl. (Not unlike the page image.)

The backstory of Airi and the original Yuuri in chapter 5.

Yuuri Asuka: "Airi, I'm sorry I couldn't keep our promise."

"Yuuri"/Airi's death scene in chapter 6. The entire team is so heartbroken that even Nico and Saki look like they're about to cry.
- Made Harsher in Hindsight with the Chapter 13 reveal that Kazumi is a clone of the original who had previously turned into a witch and died presumably at the hands of the Pleiades. If this is how the Pleiades react to vanquishing a former foe then one could only imagine the anguish they must have felt when killing one of their own especially the one who saved their lives.
In chapter 10, the backstory of every Pleiade but Kazumi. Getting hit with a witch's kiss is just the beginning.
Chapter 12 shows Kazumi's wish which was for her ill comatose grandmother to open her eyes for one last time. Jyubey asks Kazumi why she doesnt just wish the sickness away. Kazumi, crying, responds that she wants to but that her grandma wouldn't want it since it would go against her way of life. The next few panels show her grandmother teaching Kazumi on how to make her trademark strawberry risotto as well as telling her on how important it is to keep on living. Kazumi then says that her grandma passed away the next day.
Chapter 13. We find out that the cheerful, friendly Kazumi shown in the previous chapter's flashbacks had turned into a witch long ago and was subsequently killed and that the current Kazumi is a clone made by the Pleiades Saint in an attempt to revive her. Needless to say, Kazumi did not take the truth well.
- Chapter 14 actually shows us in detail what happened. What should have been a day of celebration, with Umika's book being published and the girls reminiscing about the day they met Kazumi and how their lives had changed for the better ends with Michiru becoming a witch while cooking her signature dish, blowing the roof off of her grandmother's house and revealing the truth to the others.
Chapter 14 has Satomi forcing Kazumi with to attack and kill the other clones with Fantasma Bisbiglio. One of Michiru's other clones (the fourth, going by the roman numerals on her face) actually asks Kazumi to kill her, right before Satomi stabs the both of them through the chest.
- During Satomi's talk with Kazumi, the view shifts to Nico and Mirai who are listening in. The whole chapter goes by with neither rushing to her aid. Looks like Satomi isnt the only one who considers Kazumi disposble.
- Chapter 15 reveals all of the Pleiades except Kaoru finds Kazumi expendable.