Nae Tennouji

Nae Tennouji (天王寺 綯, Tennōji Nae) is the only daughter of Yuugo Tennouji and Tsuzuri Imamiya, and lives in fear of Rintaro Okabe's Hououin Kyouma persona.

Personality
Nae is a very timid and reserved girl who prefers to keep out of Rintaro Okabe's way as his Hououin Kyouma persona frightens her. She is shown to not like him very much, calling him a weirdo due to his tendency to give people nicknames, and especially dislikes him calling her father "Mister Braun". She is good friends with Mayuri Shiina and Suzuha Amane though and thinks of them as her older sisters, often exchanging a friendly "Tutturu" with Mayuri, and hanging around with Suzuha when she is working in the CRT TV store.

She loves her father very much and often feels like she is imposing on him, even going so far as to learn cookery from Mayuri and Kurisu for his sake. She is deeply depressed following his suicide, though she blames Okabe and Moeka Kiryu for his death and kills the latter before wounding the former (see Plot, Vengeful Nae).

She also has an alternate personality that she calls Sergeant Clean. This personality is very strict and commanding which she uses to force her "subordinates" to clean up rooms. While acting out this personality, she calls her "subordinates" various cutesy nicknames such as "Mister Smileybear" for Itaru Hashida. This personality was likely inspired by her father Yuugo Tennouji's way of forcing others to clean, as seen in the Steins;Gate 0 Drama CD Runaway of the Free Particles.

Trivia
Minor spoiler for Robotics;Notes:
 * In Robotics;Notes, Nae returns as a 20-year-old employee at JAXA.

Etymology

 * The name Nae means "bind, twist, make rope" (綯).
 * Nae's surname Tennouji means "heaven/heavenly, sky, imperial" (天) (ten), "king, prince, monarch, sovereign, potentate" (王) (nou) and "temple" (寺) (ji).