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Chaos glanced at Abyss with curiosity, how did she get here?
He doesn't remember inviting her to his bed, but she was sleeping happily with him. He couldn't help but find it cozy to have cuddled with her though, but he still was confused.
"S-Sorry Master… I-Its just that I couldn't resist! Last night you were very tired after using a lot of hundreds of millions of mana in practicing your Illusion Veil, so you went to sleep like a trunk… I saw you sleeping and how there was another space and I sneaked in…!" said Abyss.
"Hm…" Chaos couldn't help but find her a bit suspicious, but he didn't feel like anything happened to his body during the night, so Abyss had resisted any impure temptations, or perhaps she was just as innocent as Chaos? Who knows?
"It felt like to sleep with you, you can come every night if you want, but you should have asked me before entering, don't do things on your own," said Chaos, petting Abyss in the head.
Check "The Protagnist's Sister Is Actually the Strongest"!