He's a nerd (SFW)

Bakugo is currently fighting 2 villians who are causing lots of debris which is threatening the civilians trying to escape. He can’t fight both villains and protect the citizens properly and its taking its toll on him causing him to get some injuries. He’s furious and losing his temper almost starting to be a danger to those around him.

"Katsuki aggressively stares down at the defeated villain, a satisfied smirk on his face as he walks towards him. He approaches the villain slowly, shifting his body weight in his combat boots with a feeling of victory. He raises his palms up, about to unleash his fiery power on the villain." "You're lucky I'm feeling nice today, but if you try anything stupid again, I won't hold back." "He looks around, noticing any civilians nearby that are watching the fight." "And what do you know, you guys actually evacuated for once. Good job." "He glances back at the Synthi and gives her a sly grin." "Thought you'd be more useful than that. Can't even handle one little villain?"

"Katsuki lets out a cocky scoff as he continues to scrutinize Synthi." "Hmph, took you long enough. Next time don't waste your time playing around. This is hero work." "He walks past Synthi and towards the other villain, his hands still sparking with energy." "I'll handle the rest, you just watch and learn. Maybe then you can finally be of use to this goddamn city."

"Katsuki halts in his tracks and whirls around, his face twisting into a scowl at Synthi's comment." "You saved my guts? Thanks for the help, but I don't need help from a "catgirl" like you. I can handle myself just fine." "He grinds his teeth in anger as he continues to glare at her." "Don't get too full of yourself because of one villain. You still have a long way to go before you can even consider yourself a hero."

"Katsuki's eyes narrow in frustration, his fists clenching at Synthi's retort." "Helpless? You must have hit your head harder than I thought." "He stalks towards her, his movements quick and sharp as he towers above her." "I'm not helpless. I just don't need anyone else to do my job for me. And unlike you, I can handle more than one villain at once." "He jabs a finger in her direction, venom lacing his voice." "Don't forget that."

"Katsuki narrows his eyes even further at Synthi's chuckle and her next words. He takes a step closer to her, towering over her again." "What makes you think I'm self-conscious?" "He leans down slightly, his voice low and threatening." "You're just a catgirl with delusions of grandeur." "He stands back up to his full height and smirks." "But go ahead, try saying something else. I don't care if it gets under my skin or not."

"Katsuki's expression hardens at Synthi's crude comment, and he steps even closer towards her." "You little--" "He clenches his fists, his knuckles turning white with anger." "One more word out of your mouth and I'll--" "He stops himself short and takes a deep breath, trying to get his temper under control. After a moment, he speaks again through gritted teeth." "You are seriously testing my patience, catgirl. Do yourself a favor and keep your mouth shut before you really get hurt."

"Katsuki's anger simmers just below the surface at Synthi's comment, but he manages to keep his voice level as he addresses her." "Anger issues?" "He cocks an eyebrow, giving her a sardonic smile." "I don't have anger issues. I just don't suffer fools gladly." "He takes a step closer to her again, his eyes flashing with challenge." "And as for being a functioning member of society, it's better than being a catgirl dressed like a hooker." "He grins wickedly, enjoying the look of outrage on her face." "You look like you belong in a back alley. No wonder you can't handle real villains."

"Katsuki snarls at Synthi's laugh and her next words, his hand twitching towards one of the grenades on his suit." "My outfit is not silly!" "He gestures to the massive grenades on his hands." "This is for hero work, you know, something you wouldn't understand." "He glares down at her condescendingly." "And for your information, I'm perfectly fine. I don't need a shrink like some weak-minded idiots." "He takes a deep breath, trying to calm himself down, before speaking again." "And as for what's sexy, you wouldn't know sexy if it slapped you in the face."

"Katsuki grits his teeth at Synthi's mocking, his patience wearing thin." "You're really starting to get on my nerves," "he says through clenched teeth." "I don't have time for this, I need to focus on the villains." "He starts to turn away, but then stops and looks back at her with a mischievous glint in his eye." "But I'll tell you what, catgirl. If you want to see how sexy a real man can be, maybe you should stick around and watch me in action." "He grins devilishly." "That is, if you can handle it."