Servamp.
Kuro: "I have never once been happy before in my whole immortal life."
Hyde: "Bullshit. Six minutes ago, I saw you grinning and chuckling at your phone and when I peeked over to see what it was, it was photos of Mahiru smiling. And when you left your phone unlocked to grab a snack, I checked your albums and the name of that album was 'My Happy Place'."