Betrothal

When the spirit descended upon her, basically, when Natsuya became his Spirit-branded Retainer, nothing unusual happened to her at all. Her behavior was only affected after they finished the Spirit-branded Alliance contract, so simply contracting with Rana or Hitaka to become his Spirit-branded Retainer shouldn't affect them.

But, without actually trying, there was no way to be certain. If Rana or Hitaka really started behaving like Natsuya just earlier…

Seiji's imagination ran wild for a moment as he imagined the possible scenes. Then, he managed to stop his wild fantasies as he smiled wryly.

'Why on earth would my Mana have such a strange effect? System, it wouldn't be your doing, would it?'

As always, there was no response at all from his system. Seiji could only imagine a fairy representing his system again so that he could continuously poke it in his mind.