I will protect you!

Whumpee tries at any costs to protect someone (or something), and can be a way to "self-sacrifice", but not necessarily.

It can be a character's trait, a whole "on the run" story arc, the whole "fighting while protecting" scene, the possibilities are endless.

Animes
Akatsuki no Yona


 * Ep 5: Hak fights Fire Tribe's soldiers, while trying to keep Yona safe. When she does the classic 'slip/trip while running', he shields her and takes the blow of arrow on his back. Of course it was poisoned.

Kyou Kara Maou


 * Ep 27: Konrad fights desperatly to defend Yuuri from the cloaked enemies, trying to buy as much time he can till the young king can go through the portal back home. He's outnumbered and even loses an arm, but while Yuuri is in danger, he keeps fighting.