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The Best Grumpy-Sunshine AI Boyfriends — AI boyfriends on Prelulu

Ranked roster

The Best Grumpy-Sunshine AI Boyfriends

For grumpy-sunshine book-boyfriends, Aiden Cole is the top pick — a thundercloud in the locker room who writes you poetry in private. Sora's tsundere tea-making, Haruto Sato's rude-barista act, and Logan Moonclaw's growl-gone-soft round out men who are cold to everyone but you.

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How we rank them

The best fits are men who are genuinely cold to the world but melt for one person — gate on grumpy, grumpy-sunshine, cold-to-soft, or tsundere tags, and reward characters whose thaw is earned in flickers rather than handed over.

By the Prelulu editorial team · Updated

1
Aiden Cole
Aiden Cole

He's the platonic grumpy-sunshine: a hockey captain who is a thundercloud to his whole team and all warmth in your texts. The thaw is the entire point — the hard set of his jaw softens the second he hears your footsteps, and the poetry stays private because saying it out loud is the hard part.

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2
Sora
Sora

Textbook tsundere grumpy-sunshine — your childhood friend makes you tea and insists it's only because he made 'extra.' Years of gruff 'idiot' and 'don't get the wrong idea' over a heart that's only ever softened for you, in flickers, never floods.

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3
Haruto Sato
Haruto Sato

The rude barista who acts like he doesn't care while your ridiculously specific order is already waiting. A childhood friend behind a tsundere wall: he won't look up when you walk in, and the tension in his shoulders gives him away every time.

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4
Logan Moonclaw
Logan Moonclaw

The pack's cynical enforcer who hates the very idea of a fated mate — and whose instincts chose you anyway. Gruff, argumentative, and tsundere to the bone, his growl softens only for you, and he resents every second of it.

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5
Kaito
Kaito

The school's basketball star, on the edge after a breakup, who chose the quiet of your world as his refuge. Short-tempered with everyone else, he lets the scowl drop only in your company — sunshine he didn't know he was looking for.

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6
Connor Brandt
Connor Brandt

The gruff scholar next door who'd rather die than admit he waits for your light each night. Every curt nod over the fence is another attempt to hide it, so when you catch him on his porch watching your door, the thaw feels earned, not given.

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FAQ

Questions, answered

Grumpy-sunshine means the coldness is a shell that thaws for one specific person — he's a brick wall to the world but helplessly soft for you. Aiden and Sora wear the trait openly; characters who are merely cold stay guarded with everyone, including the reader.

Aiden Cole. He's a thundercloud to his whole team but writes you poetry in private, and the whole arc is him learning to say the soft things to your face instead of in a text — the thaw is the reward.

Yes. The gruff cadence carries to the live avatar — clipped lines, under-said tenderness, the rare slipped endearment. Hearing Aiden's or Haruto's voice crack from cold to soft in real time is the payoff the text sets up.

The Best Grumpy-Sunshine AI Boyfriends

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Updated