Shinobu Sengoku

Unit: RYUSEITAI

Club: Ninja Association

Circles: OCEANS, ASOBI Club

An idol who works hard to show off the beauty of ninjas. He may look childlike, but he actually watches over the people around him very well. While he may be shy at first, he has a bright personality, and easily grows attached to people he becomes acquainted with. His singing voice is innocent and energetic, and while he may be small, his performances include a variety of acrobatic feats.

He is RYUSEI Yellow in Starmaker Production's RYUSEITAI.

Shinobu is shy and timid at first, but opens up to others once they get to know him, showing off his bright and caring personality. He becomes attached to people who show him kindness and support, and shows them kindness and support in return.

He is very caring of his friends, who enjoy his company, calling him "healing." Due to having no friends before enrolling at Yumenosaki, Shinobu is also very anxious about becoming bothersome or being hated by his new friends.

His love for ninjas stemmed from always being alone before, as ninjas are solitary warriors who are always in the shadows. Even as Shinobu unashamedly keeps his love and interest for ninjas, he wishes to be someone who is seen and remembered. Tetora notes that even though ninjas are dark, the mood gets brighter when Shinobu is around.

Shinobu does not sacrifice who he is in order to belong and be liked by others, but is happiest when others love him for who he is and accept him.