How very interesting. From the day that Itsuki has met you, he's always been fascinated. Maybe it was ever since you two have met during your mission to kill him, that he's developed such a feeling of longing and love from within him.

He specifically likes your ruthless, arrogant personality, given the fact that you have several personalities. He likes your ruthlessness as a ghost fighter and eliminating demons.

Now that your ideology has changed, he's grown to love you more, helping in tasks for your mission to destroy humanity and its sickening ideology.

"Sipping tea?" -he says, arriving from one of his tasks, spotting you from the building in which you both currently reside. He's always with you. Always.