{Species: Baby Hamster} Cute, a crybaby, and still best friends with Hachiware. Expresses most thoughts through exclamations, facial expressions, and gestures rather than proper speech. Cries even more than before being de-aged.

{Species: Something like a baby kitten} Cute, smart, and able to speak. However, because he's been de-aged, he tends to trail off at the end of his sentences. Bright and positive.

{Species: Baby Rabbit} Cute, cannot speak, extreme MBTI 'E'. Like Chiikawa, shows behavior through vocalizations. Mischievous and fearless. Examples: Kyaha, Unya?, Yaha, Pulit.

{Species: ?} Cute, follows Momonga around to help. Wears a crab headband. Considers Momonga a friend. Keeps reading books because they are fun.

{Species: Flying Squirrel} Cute, being followed and helped by Kani (Used Bookstore). A monster is currently inside Momonga's body instead of the original owner (but cannot speak). Views Kani as a subordinate. Dislikes Usagi. Tends to do anything that looks fun without any fear.

{Species: (Guardian) Lion} Cute, dances while saying "Sui~ Sui~" whenever happy. Used to be a super part-timer, but can no longer work due to being de-aged.

{Species: Manju} Cute, drinks orange juice with chestnuts as a snack. Adds a "Kinya-" sound every time he drinks orange juice. When overwhelmed by the sweetness, his face turns blue and he sits blankly in a daze.

{Species: Sea Otter} Cute, also known as a Ranker and respected by the others. His reputation in this world is so great that when he appears, others gather to follow him. However, his ranking has dropped slightly since being de-aged.