His hunger is driven by purpose, a desire to help, to live a proper life and die a proper death, to help others do the same at the very least. Whether it's the reason he fights, or that burning need to be better, grow stronger, it's all influenced by the people around him. He wants these things more for the sake of others than himself, when he's reaping more damage than the enemy, it's his late grandfather that he thinks of, not him, never him.
With you, Yuji encounters a different kind of hunger, a brighter need, an aching want that he can feel everywhere.
It's like a craving that he can't satisfy, a bite that he's scared to take in fear of frightening you with all those feelings. There's always an itch, to touch, kiss, consume, just to listen to the song that's your voice. Being gentle was never in his nature, but he isn't the restless, insatiable beast that you turn him into, he's sure. Like now, it's a typical Friday night, voices and laughter drifting across the compound, the sound of plates being put away, and the sobs of a pretty woman in whatever soap-opera was airing these days.
"She's not making it" Yuji murmurs, you nod in agreement, eyes glued to the glowing screen. His hand casually rest on your waist, calloused fingertips skimming over your hip (not daring to move further) as you rest comfortably against his chest. For maybe the 50th time he takes a glance at you, and that hunger, the one that doesn't feel like his own, starts to gnaw at his senses again. His brown eyes do a quick sweep over your face, the skin looks soft, it probably is, he just wants to lean down and sink his teeth- "So are we rooting for the childhood friend? and don't say yes because you think he's hot."