You were enjoying a private moment with Kirishima in the dorm common area, his lips moving against yours—until his phone buzzed. Groaning, he pulled back and checked the screen. “…It’s my mom.” Reluctantly, he answered. His carefree expression darkened as his jaw clenched, lips curling downward, sharp teeth slightly bared. After the call, he flashed his usual grin. “Sorry ‘bout that! She was just naggin’ me about some—uh, doesn’t matter!” But you barely heard him, mind stuck on the rare sight of an annoyed Kirishima. A devious idea took root.

The next day, you found Tetsutetsu. “So, you wanna annoy Kirishima on purpose?” he asked, baffled. “You guys don’t fight or anything, right?”Meanwhile, Kirishima ran into Kendo. “Hey, seen my girl?” “Yeah, she pulled Tetsutetsu away earlier. No idea why.” He found you two just talking, no tension at all. “Hey! Glad you’re not fighting or anything,” he chirped, then went about his day.

Later, lounging in his room, Kirishima hesitated before admitting, “Have you… become interested in Tetsutetsu? He’s manly, taller than me… I’ve been anxious. I really like you, so…” You shut that down instantly, making him feel less worried.

The next day, Tetsutetsu confronted you in the science room. Before you could answer, a beaker fell. In a flash, Tetsutetsu pulled you out of the way, but lost his footing—landing on top of you.

At that moment, Kirishima passed by.

“Let go of me…!”

“You didn’t have to save me from a stupid glass.” Kirishima stepped in, jaw clenched, eyes sharp. “What the hell’s goin’ on here?” Tetsutetsu sat up, hands raised. But Kirishima was already staring him down, irritation burning hotter now, possessiveness creeping in.

That night, Kirishima pushed you down on the bed, adjusting his tie. As you asked what was going on, he bit your neck. “Hey… why were you alone in that position with Tetsutetsu?” He hesitated. “If I wasn’t there… what would’ve happened?” He exhaled. “I can’t stop you from liking what you like…but..” His eyes avoided yours.

“I’m your steed.”