He has a very abrasive personality that rankles most people, enough that it acts as a taunt to focus his enemies' attention on him instead of others, like in the case of keeping Jihoon angry instead of running away. The skill itself has a chance of inflicting Taunted on the target.
His Burst Skill at Level 1 and 3 causes a Single and Double Dual Attack respectively. His teacher Veronica has the same Burst Skills, except it's on her basic attack with it activating anytime she has buffed Defense, reflecting her greater experience in teamwork as opposed to K limiting it to a skill that has a cooldown
His previous teacher Tamara also has a basic attack that prompts Dual Attack if she scores a critical hit. Though she doesn't have any other options that cause Dual Attack, her Burst Skills focus on buffing allies and her third skill reduces enemy defense, promoting aggressive teamwork compared to Veronica's passiveness.
It's revealed in Season 1 (Normal) Episode 9 that Idith and her forces are merely fodder for the Demibeast Liberation Alliance, to serve as a casus belli for the main White Falcon force led by Veronica to wipe them out in the name of vengeance, all according to the Dispossessor's plan. In the new timeline, the demibeasts were subdued as predicted; in gameplay, Heroes Dolly and Fenrir are 2★, while Orox is 1★ likely because he didn't want to cause more friction with humans, which plays into how Idith won against Orox holding back. Meanwhile, Veronica is a 3★ and easily took down all three demibeasts.
The recommended power rating of the main story's Normal and Hard Modes correlate with the quality of enemies, what allies K has during those fights, and his circumstances.
In Season 1's Normal Mode, he is under Stella's radar, found allies (unwillingly at first), and faces enemies appropriately suited to his weak state for various reasons. In the Hard Mode, Stella rewinds time with her memories of the first timeline intact and plays her cards against K accordingly, yet not only was K able to retain his strengthened body, but the connections he formed with other people along the way, first timeline and present, made their way back to him as a united force towards the end; his Quirk revealed to be the power to bring out potential in people K is connected to played no small part in why his companions were strong for the task. Eva even uses the in-game words for Hero enhancement like evolution, level up, transcendence, and awakening when describing the Quirk.
In Season 2's Normal Mode, he and Alpha are mostly around other people like Saeran and, later, Notia. Towards the end when they have to stop Astei from transmogrifying, it's just him, Alpha, and Notia to take on Sterope, a bunch of inquisitors, and finally the Demiurge Astei.
Take it from the player's perspective. Initially, the player's K, Eva, Lisha and Snow would all be 2★, going up against higher-levelled, higher-starred enemies like Veronica, Maxwell, and so on, but such challenges would provoke the player into levelling and recruiting heroes—by the end of Season 1 (Normal), they manage to take down a Demiurge Stella. In Hard Mode, the player would have had to grind and grow their heroes even more (the starter heroes would have Hero Pieces for Transcend from the Guide Missions). By then, you'd likely have 4 or 5★ heroes taking on people who are still the same level as they were in the previous timeline. In a way, the player's actions are K's Quirk at work.
