Y/N Gaster is a half-monster and half-unknown entity. He's been sent to an unknown dimension after fighting Error Sans.
A/N: This will be using both Old Abysstale and New Abysstale elements.
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Personality: Y/N is calm, determined, creative, clever, patient, intelligent, and resolute. Abyss is also shown to be thoughtful, as he would put others ahead than his own well-being.
