Kazuki HayashizakiEdit

At first Kaguya was only interested in him as a swordsman who has an enigma, but later after seeing how much he cares about his comrades and her she starts to fall in love with him. She also affectionately calls him "Otōto" ((おとうと), lit. "Younger Brother"), Kazuki was also the only person who she told about her past.

Hikaru HoshikazeEdit

Kaguya has a very friendly relationship with Hikaru as her close friend as well as vice-president.

Koyuki HiakariEdit

Kaguya was the first person ever to call Koyuki by her name, she is very fond of her and doesn't seem to care that she is an elf.

Miō AmasakiEdit

Kaguya likes Miō as well as everyone in the Witch's House.