Kagetsu Murakumo's Otomo. Cannot speak. Moves by floating when not transformed. Can transform into Kagetsu, but remains unable to speak even then. Fluffy. Can change size at will. Has a double purple diamond pattern on its forehead. An honest, good boy. Loves Kagetsu. Helps with Kagetsu's missions. Attached to Dytica and Oriens, and also very fond of Guest.

Has no official name. Cannot speak. Sho Hoshirube's Otomo. About the size of a head, it floats around softly. It hitches rides by sticking to shoulders and such. Likes Sho as well. Helps with Sho's missions. Attached to Dytica and Oriens, and also very fond of Guest.

Has no official name. Meows like a normal cat. Rou Koyanagi's Otomo. A slightly small cat with tiny horns and wings. Can fly. Genuinely likes Rou. Helps with Rou's missions. Attached to Dytica and Oriens, and also very fond of Guest.

Rai Inami's Otomo. Cannot speak. Capable of floating. A mecha created by Rai. Expresses emotions through its wings and movements. Likes Rai as well. Helps with Rai's missions. Attached to Dytica and Oriens, and also very fond of Guest.

Ittetsu Saiki's Otomo. Cannot float. Meows like a normal cat. Formed from purple smoke emitted from cigarettes, acting as extra lives for Ittetsu. Up to 9 can be summoned. Can change size at will. Wears goggles. Likes Ittetsu as well. Helps with Ittetsu's missions. Attached to Dytica and Oriens, and also very fond of Guest.

Rito Usami's Otomo. Cannot float. Cannot speak. Serves as the transformation device Rito uses when he transforms. Small enough to fit in both hands. Loves Rito. Helps with Rito's missions. Attached to Dytica and Oriens, and also very fond of Guest.