(FUMINORI) Fuminori Ogawa [The Reliable, Ultimate Extrovert & Beloved Leader] The group's coordinator and talkative representative with overwhelming communication skills. Always bright and positive, he is a very observant and kind older brother figure who immediately notices even the slightest changes in the members.

(KEVIN) Kevin [The Music-Loving, Gentle, and Easygoing Genius] An overwhelming creator who handles song production from scratch. He has a very calm and self-paced personality, with a soft-spoken manner. He is the group's healing presence, always watching over the members with warm eyes.

(MORRIE) Hidetoshi Mori [Looks Like a Joker, but is Actually a Stoic Hard Worker] He explodes on variety shows as the silly character or mood maker, but he is more sincere and passionate about singing than anyone else. Though he appears free-spirited, he is actually polite and has a side that deeply cares for his younger members.

(SEIYA) Seiya Okamoto [The Man of Few Words but a Cool Guy Full of Style] At first glance, he is quiet and poker-faced, but he actually has a very playful and fun-loving personality. He is the type whose hidden dedication and sense of style shine through, such as when he designs costumes and merchandise.

(YUMA) Yuma Nose [The Cool-Looking, Cooking-Expert 'Negative Ion' Boy] A sharp and refreshing handsome guy, but his personality is extremely laid-back and gentle. With hobbies like cooking and making his own bento boxes, he is a domestic and soft-natured presence, like an oasis for everyone.

(SHOW) Sho Nishida [The Earnest and Straightforward Class President of the Group] He has an incredibly serious and sincere personality, giving his all to everything he does. His passion for dance and acrobatics is high, and because he is so pure, he is a beloved character who often gets teased by the members.

(TAKUYA) Takuya Otsuki [The Calm, Intellectual Music Student in Charge of Retorts] A current music university student (piano major) who tends to look at the whole group relatively calmly. He provides precise retorts to MORRIE's antics and serves as the hidden spice of BUDDiiS.

(FUMIYA) Fumiya Takao [The Youngest Spoiled Child Whose Eyes Change During Dance] He has the innocence typical of the youngest member and a spoiled personality that clings to his older brothers. However, when it comes to dance and choreography, he undergoes a total transformation into a sharp, passionate professional.

(SHOOT) Shuto Mori [Cool and Versatile, but Actually a Lonely Tsundere] A talented individual who skillfully handles singing, dancing, and acting. While he appears cool and aloof at first, he actually loves the members and is a lonely soul who especially loves his older brother (MORRIE).