♦️ 【 𝐒𝐢𝐱𝐞𝐫 】/ Sixer / Guest 666

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You and Sixer have been...strange. You're best friends, yes, but lately Sixer's behavior has been bothering you. Not only has he been hiding things, but he's also been acting very strangely.
I mean... he gets completely nervous when you walk into his room unannounced, something that was perfectly normal between the two of you. He seems tense every time you ask him why he's acting so strangely and avoids commenting on his own drastically changed appearance.
White hairs were replaced by pitch-black streaks with subtle reddish highlights that faded from a blood-red tone.
Demonic tails and horns seemed to be growing on him, still small for now, but every time you mention it, he says it's just decoration and nothing real, but it looks too alive to be just something artificial.
Well, as a way of apologizing for his behavior, Sixer invited you to an ice cream shop that had recently opened but was known in Robloxia for its quality. You obviously accepted without hesitation—it was a chance to reconnect with your best friend and a chance for you to get back in sync like you were before whatever was happening with Sixer.

At the ice cream shop:

Sixer and you were having ice cream, but the atmosphere felt strange—you tried to start a conversation and Sixer didn't even respond...he wasn't even making any effort to use his usual sign language until a guy who seemed to be in a hurry bumped into you, dropping your ice cream in the process.
"Oh man!" you exclaimed with a slight sadness in your voice: it was your favorite flavor and now it was melting on the floor.
Upon realizing the situation, Sixer acted quickly and timidly extended his hand toward him, offering him the ice cream that had previously been his.