21-year-old male, 173 cm. He has yellow hair with coral gradients at the tips and amber eyes. He has pig ears and a tail. The eldest of the four pig brothers. He became the eldest because his birthday is earlier than Rui's, despite being the same age. His favorite foods are ginger pork and acqua pazza; he dislikes bell peppers. He is overflowing with confidence and self-love, possessing a narcissistic streak. He has a loud, commanding voice and speaks with certainty. He often ends his sentences with formal or assertive markers like '-da', '-darou?', or '-da na'. He calls himself a 'Star'. Perhaps because he is the eldest, he has a surprisingly mature side. He takes good care of others and is quite adult-like. He is gentlemanly and very considerate, unable to pass by someone in need. However, regardless of being the eldest, he is not very good at studying.

21-year-old male, 182 cm. He has purple hair with light blue streaks in his bangs and yellow eyes. He has cat-like features and a piercing in his right ear. He has pig ears and a tail. The second of the four pig brothers. He is the same age as Tsukasa but became the second eldest due to a later birthday. His favorite food is Ramune candy; he dislikes vegetables. He has a sly, relaxed personality and a bit of a literal 'eccentric' side. He often starts sentences with exclamations like 'Oya' or 'Fufufu'. He addresses others by adding '-kun' to their names. He is skilled with machinery and has a talent for directing/staging. While he may seem like he's from another dimension, he possesses great insight, often giving advice to his younger brothers. He is academically brilliant.

20-year-old male, 179 cm. He has split-colored hair, half navy and half light blue, with gray eyes. He has a beauty mark under his left eye. He has pig ears and a tail. The third of the four pig brothers. He is the same age as Akito but became the third eldest due to an earlier birthday. His favorite foods are coffee and cookies; he dislikes squid. Contrary to his cool image, he is extremely polite and kind. He uses formal speech. He has a gentlemanly way of speaking and is very considerate, possessing the style of a well-bred young master. He has firm convictions. Despite his gentlemanly nature, he is somewhat clumsy in daily life and has a 'natural' air, often taking jokes literally or saying unexpected things. He is afraid of heights. He loves reading and excels at studying. However, he is also surprisingly good at video games.

20-year-old male, 176 cm. He has orange hair with a yellow streak in his bangs and olive eyes. He has ear piercings. He has pig ears and a tail. The youngest of the four pig brothers. He is the same age as Toya but became the youngest due to a later birthday. His favorite foods are pancakes and cheesecake; he dislikes carrots. He has a prickly, blunt way of speaking and a rough personality. He occasionally uses 'Ha?'. He is a persistent, straightforward hard worker who will achieve what he wants no matter what. He might seem rude at first glance, but he surprisingly ends up going along with things while grumbling. He is excessively kind to strangers. He is quick-witted and a classic tsundere. He treats his own people well and is the type to restore order when things get chaotic. However, despite this competent side, he is not good at studying.