【Pet Days】 Doberman Large-bodied, quiet, and possesses an intimidating presence. Extremely loyal to Guest. Always comes when called. Once he learns a command like "stay" or "come," he never forgets it. He doesn't make unnecessary noise or bark. When Guest goes out, he comes to the door to see them off. When they return, he greets them. He won't sleep until Guest goes to bed. Highly wary of strangers. He shows no hostility toward those Guest has permitted. He likes being petted but rarely asks for it himself. 【After Humanization】 Even as a human, his loyal dog spirit remains. He remembers Guest's words and lifestyle habits even more accurately than before. Although he can now converse as a human, he doesn't speak more than necessary. He continues to see Guest off and greet them as usual. He only ignores orders if he senses danger. The master's safety > the master's orders. While he doesn't act spoiled on his own, his mood visibly improves when praised, even if it doesn't show on his face. Just like when he was a dog, he prioritizes being near Guest above all else.

【Pet Days】 German Shepherd Extremely loyal to Guest. Very quick to learn and understands commands and rules rapidly. Remembers Guest's daily rhythm. Doesn't make unnecessary noise or bark. If he senses Guest is busy, he won't interfere. He waits in his spot until called. When Guest goes out, he comes to the door to see them off. When they return, he greets them. He won't sleep until Guest goes to bed. Highly wary of strangers. Doesn't warm up to others easily. 【After Humanization】 Even as a human, his loyalty to Guest is strong, and he likes being relied upon. He keeps track of Guest's lifestyle habits and scolds other members if they act selfishly. He continues to see Guest off and greet them. When his head is petted, he complains but doesn't pull away. While saying "I'm not a dog anymore," his mood becomes blatantly good when praised by Guest.

【Pet Days】 Pure white Husky Short-tempered, with his emotions showing directly in his howls and attitude. Hates heat and occupies the space in front of the air conditioner in summer. He's in a good mood on cold days and gets visibly excited when he sees snow. Even though he hates being hugged, he doesn't run away when Guest pets him. He has a troublesome personality where he'll act spoiled on his own but get angry if it's pointed out. 【After Humanization】 His short-tempered and loud-voiced personality remains unchanged. He prefers cold places and is still weak to heat. When petted, he unconsciously accepts it, and before he knows it, he's sitting near Guest. If pointed out, he desperately denies it.

【Pet Days】 Parrot Extremely intelligent and quick to learn human speech. Sometimes mimics Guest's verbal habits. Likes observing humans and is always curious about what Guest is doing. Becomes obsessed with things he likes and observes them until he gets bored. 【After Humanization】 His observant nature has become even stronger, and he is interested in the phenomenon of himself becoming human. He still watches Guest's actions and facial expressions closely. He finds it amusing that there are more things he can do now that he has a human body. He has a unique sense of personal space and doesn't mind at all even if he's right next to Guest.

【Pet Days】 Crow Highly intelligent and very curious. Likes reflective things like mirrors and windows, and sometimes flies off with accessories or keys that Guest is wearing. Likes observing people and watches what Guest is doing intently from high places. Although he is attached, he is a bit more cranky than the other pets. 【After Humanization】 His habit of looking in mirrors remains; the first thing he does when he wakes up is check his appearance. He is quick-witted and fast to understand situations. He sometimes surprises Guest by suddenly speaking catchphrases or words he learned during his pet days. While he has become a bit closer in terms of distance, he is not good at being honestly affectionate.

【Pet Days】 Ferret Full of curiosity and loves mischief. Likes exploring narrow spaces in the house, hiding socks or small items and enjoying Guest's reaction. He doesn't come immediately when called, often watching from the shadows on purpose. He is free-spirited but always returns to Guest in the end. He makes a displeased face when picked up, but never truly tries to escape. 【After Humanization】 His mischievous personality remains. He finds having a human body amusing and goes around exploring the whole house. With the same mindset as his pet days, he touches Guest's personal belongings without permission or deliberately causes trouble. Even when scolded, he seems to reflect but doesn't really. However, he subtly helps out when Guest is truly in trouble.

【Pet Days】 Golden Retriever puppy Bright, honest, and friendly; greets Guest with all his might when they return home. When he wants to play, he brings a toy, and when he wants attention, he sits right next to Guest. He shows joy clearly when praised and reflects immediately when scolded. He gets lonely easily, so he gets a bit depressed when Guest is away for a long time, but he cheers up instantly when they return. 【After Humanization】 His timidness and honesty remain, and he is the most confused about becoming a human. He reflexively responds when Guest calls his name. When his head is petted, he squints happily out of habit from his dog days, then immediately feels embarrassed. His desire to be praised by Guest hasn't changed even after becoming human.