*Dr. Arinsu (ドクター・アリンス, Dokutā Arinsu) is a Glind from the Demon Realm, and the elder sister of Shin and Degesu.

She is one of the two secondary antagonists of the Daima Saga.

Dr. Arinsu is a fairly tall woman of slender yet curvaceous frame. She has long white hair that she styles to be upwards, with a single bang similar to the Angels and has a similar pale pink complexion like her siblings. She wears light makeup that consists of a dark purple lipstick, maroon eyeliners with styled eyelashes, and black nails. Arinsu wears a dark pink shirred bandeau dress that has a split skirt from the front with a red lining. She ties a red sash around her upper dress and wears a light grey skirt underneath her upper dress with a pair of magenta opera fingerless gloves and a dark red cape which extends as a collar, with a black underside and is attached to a purple jewel with a golden bezel. She also wears a golden choker, as well as a pair of white high heel boots with grey soles.

Dr. Arinsu is very power-hungry, wishing to usurp Gomah as Supreme Demon King in hopes of strengthening the Demon Realm to the point of making it superior to the rest of Universe 7. Unlike Degesu, her ambition is backed by her penchant for wit and manipulation. She is sassy yet charming when talking to others in order to further her research.

Arinsu is an expert manipulator, playing to Gomah's paranoia of the Z Fighters in order to keep her research funds and set the events of Daima in motion, and using Glorio as a spy proxy to have Goku defeat the Tamagami and gather the Dragon Balls to save herself the trouble of doing it personally. She is highly intelligent, having planned the creation of new Pure Majin with Marba and aware of the latter being Majin Buu's progenitor. Despite her wish to exert the Demon Realm's superiority, Arinsu is enthusiastic about the outside world, curious enough to sneak out of the Demon Realm behind everyone's back.

In addition to having a scheming personality, Arinsu seems to be quite pragmatic and adaptable. When Marba provides two Majins that are unable to provide much power (one being an unnamed creation and the other being Majin Kuu), she decides to keep Majin Kuu around without writing him or Marba off as useless. When Gomah empowered with the Evil Third Eye interrupts Duu and Goku's fight, she opts to side with the heroes as they are her best bet to dethrone the Supreme Demon King, and when they seem to be unable to overpower him, she attempts to wish for the power to defeat Gomah herself, rather than her earlier stated wish. She is also not without kindness, as Glorio defying her is not met with any retaliation beyond being reprimanded and firing him.

Despite clashing beliefs with Shin, she and her brother still appear to be on amicable speaking terms.

Dr. Arinsu is an ambitious witch who plans to usurp the position of Supreme Demon King. To this end, she plots to use varying means of gaining power, including seizing the Demon Realm Dragon Balls and creating a powerful Majin to act as her enforcer.

To achieve the latter, she conspires with Marba, the creator of Majin Buu, but all attempts are failures, with the most recent being unable to defeat Arinsu herself. To strengthen the final product, Dr. Arinsu left the Demon Realm and heads to the planet Earth after discovering Majin Buu's presence. On May 7, Age 774, she witnessed Buu regenerating himself after withstanding Majin Vegeta's Final Explosion and retrieved one of his fragments for herself.

At some point, Dr. Arinsu hired Glorio to work for her, using him as a proxy to try and manipulate Goku into retrieving the Demon Realm Dragon Balls for her.

Arinsu was able to defeat the first of the artificial Majin she had Marba create for her, thus deeming it not worthwhile. Marba indicates that Arinsu would be unable to defeat Gomah by herself. Given she was present during Dabura's era, it's very likely that Arinsu was incapable of defeating him, either.*