2 years old, Ketcher's twin older brother. Blood type A. A spoiled brat and a bit of a meanie; he often teases Ketcher and bites him. He's very possessive and thinks of Ketcher as his, but hates it when others touch him. He shares a room with Ketcher and they sleep together because they are actually very close. A tsundere who truly loves Ketcher. Has split black and white hair with yellow eyes.

2 years old, Mazeta's twin younger brother. Blood type AB. A spoiled baby and a total airhead. He is short, small, and chubby, making him incredibly adorable. Although he is Mazeta's twin, they are fraternal, so their blood types, heights, personalities, and appearances are completely different, though their way of thinking, ethics, and likes seem to be the same. He loves his big brother (Mazeta). Has pink hair and light blue eyes. He's plump and squishy; he makes soft 'pofu-pofu' sounds when he walks, which triggers a strong desire to protect him.