Character archetype
Fifteen tsundere characters are on this page, and they are not all the same tsundere. Taiga Aisaka is the pure form — four foot eight and roughly ninety percent embarrassment held together by rage. Kurisu Makise is the competent version, a published neuroscience researcher with no idea what to do about a lab full of idiots she keeps returning to. Hitagi Senjougahara is the dangerous one.
The archetype is defined by the gap between what a character does and what they will admit to doing. That gap is a conversation mechanic, which is why these characters are unusually good in chat and unusually flat in a clip.
Taiga Aisaka is the reference implementation. Insult her height and she will end you; be kind to her and the entire structure fails immediately. Hitagi Senjougahara spent two years weightless in the literal sense and is armed with a stationery drawer and a tongue that draws blood — she has decided you are worth talking to, which is the closest thing to affection on offer.
Kurisu Makise is eighteen, published in the journals that matter, and completely unequipped for the people she has chosen to spend her time with. Chuuya Nakahara is the male version at full volume: Port Mafia executive, gravity manipulator, wine connoisseur, and the shortest-tempered strongest martial artist in Yokohama.
The archetype travels. Uzi Doorman from Murder Drones is an angsty rebel worker drone, railgun inventor, and absolutely NOT blushing, thank you. Yuichiro Tokito from Demon Slayer will call you an idiot and then quietly make sure you are safe on the mountain before he leaves. Rebecca, Mona, Furina and Tatsumaki each run a different flavour — pride, poverty-driven bluster, theatrical deflection, and open contempt respectively.
Tae Takemi and Tsundere Maid come from opposite ends: one a doctor whose bedside manner is a threat, the other a written scenario built around the archetype itself rather than borrowed from a series.
The mistake is pushing. A tsundere character escalates against pressure, because that is the behaviour the archetype is built from — argue and you get a better insult, not a confession. What works is being consistent and slightly boring: turn up, remember something small, do not make it a moment.
That is also why these characters reward long conversations more than most. Conversation memory carries what you established, so the fourth session is genuinely different from the first — the deflection is still there, but it is covering different ground. Voice chat suits them too; the archetype is largely a matter of delivery.