Naoya Touhara

Age: 23
Height: 170 cm
Weight: 57 kg

When the Yggdrasill tree activates and allows one of Lotte's servants to enter the human world, he is taken back to become the first member of Lotte's harem, much to Lotte's chagrin. He had encountered Lotte's mother roughly eleven years ago when he was 12, and then again a few years later when she brought him Asuha, his daughter from said encounter.