Gatmuz's death. This troper... was the one who wrote it. And I can't re-read that scene without choking up. Sorry... I got something in my eye.. aw... I can't hold it back anymore... Especially his words to Nova before his Heroic Sacrifice:
I always will protect you... no matter what awaits me... even if I must learn you live... I will gladly end my life so you survive... I... love you...
And not five minutes after the above example, another death with heartwarming last words hits... and even harder. Poor Theron. I can't even pretend they're Manly Tears anymore. I'm just straight-up bawling from re-reading all these deaths...
You still have much to learn, Caesar. Sacrifice is one thing you never understood. But I hope your new clarity allows you to understand this...this is what we do for the ones we love.
In The Gathering of Heroes, Odie's whole dynamic with Scimitar, who he idolized, and then even worse was the Hope Spot when they rescue Scimitar and he dies in Odie's arms. Not easy to read at all, especially since it's Odie.
In Dawn of Dusk, Himiko, Balaur, and Tomoe's deaths. Possibly even Lucan and Guivre's depending on who you ask.