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Yamoto Koki
from Ninja Slayer
"pink eyes""purple eyes""black hair""short hair"
Want to collect, style and chat with Yamoto Koki?
Play Waifumaster free
Play Waifumaster free
Yamoto Koki is a character from Ninja Slayer. yamoto koki, ninja slayer Collect Yamoto Koki as a gacha card on Waifumaster, chat with Yamoto Koki as her own AI persona, and trade duplicate cards on the player-to-player marketplace — free to play.
Chat with Yamoto Koki
Yamoto Koki 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 Yamoto Koki.
💬 Chat with Yamoto Koki →How to collect Yamoto Koki
Rarity · Common (N)
- 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 Yamoto Koki.
- Skip the grind — buy Yamoto Koki straight from the player marketplace or the curated Trader shop with 🌸 hearts.
- Style & chat — once you own Yamoto Koki you can restyle her outfits and talk to her one-on-one as her own AI persona.