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Kohaku (Dr. Stone)

"blue eyes""green eyes""blonde hair""long hair""ponytail"

Want to collect, style and chat with Kohaku (Dr. Stone)?
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Kohaku (Dr. Stone) is a character from Dr. Stone. kohaku (dr. stone), dr. stone Collect Kohaku (Dr. Stone) as a gacha card on Waifumaster, chat with Kohaku (Dr. Stone) as her own AI persona, and trade duplicate cards on the player-to-player marketplace — free to play.

Chat with Kohaku (Dr. Stone)

Kohaku (Dr. Stone) has her own AI chat persona — she replies in character, remembers what you tell her, and adapts to the tone you set. Sign in to start a private, one-on-one chat with Kohaku (Dr. Stone).

💬 Chat with Kohaku (Dr. Stone) →

How to collect Kohaku (Dr. Stone)

Rarity · Super Rare (SR)

Pull her from the character gacha — soft pity kicks in at 50 pulls and a top-tier card is guaranteed by 60, so unlucky streaks still pay off.
Raise her mastery by pulling duplicates (N → R → SR → SSR → UR). Each tier unlocks a new outfit, pose set, and expanded chat memory for Kohaku (Dr. Stone).
Skip the grind — buy Kohaku (Dr. Stone) straight from the player marketplace or the curated Trader shop with 🌸 hearts.
Style & chat — once you own Kohaku (Dr. Stone) you can restyle her outfits and talk to her one-on-one as her own AI persona.