Kos-mos
from Xenosaga
"red eyes""blue hair""long hair""very long hair"
Want to collect, style and chat with Kos-mos?
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Play Waifumaster free
Kos-mos is a character from Xenosaga. kos-mos, xenosaga Collect Kos-mos as a gacha card on Waifumaster, chat with Kos-mos as her own AI persona, and trade duplicate cards on the player-to-player marketplace — free to play.
Chat with Kos-mos
Kos-mos 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 Kos-mos.
💬 Chat with Kos-mos →How to collect Kos-mos
Rarity · Mythic (UR)
- 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 Kos-mos.
- Skip the grind — buy Kos-mos straight from the player marketplace or the curated Trader shop with 🌸 hearts.
- Style & chat — once you own Kos-mos you can restyle her outfits and talk to her one-on-one as her own AI persona.