The source of influence is almost certainly the Ginyu Force.

Reference videos from the original source:
Igarashi Rika
[Dragon Ball Z KAKAROT] #6 A complete newcomer chases after Dragon Ball Kakarot!!! [Nijisanji / Igarashi Rika]
【ドラゴンボール Z KAKAROT】#6 完全初見ミリしらが追うドラゴンボールカカ...
Honma Himawari
#09 Dragon Ball Z: KAKAROT First time! A complete novice to Dragon Ball - Majin Buu Arc - Honma Himawari Nijisanji
#09 ꒰ドラゴンボールZ:KAKAROT꒱　初見！ミリも知らないドラゴンボール　魔...
Nanase Suzuna
[Dragon Ball Z: KAKAROT] #8 7 years later... Majin Buu's resurrection!? [Nanase Suzuna/Nijisanji] Spoilers
【ドラゴンボールZ:KAKAROT】＃8  あれから7年…復活の魔人ブウ！？【七瀬す...
Higuchi Kaede
[Dragon Ball Z: KAKAROT] #6 Will I never see Goku again? ;;; Who is Buu?! [Nijisanji / Higuchi Kaede]
【ドラゴンボールZ : KAKAROT】#6 悟空もう会えへんのか；；ブウって何者よ...
Suzuhara Ruru
[Dragon Ball Z KAKAROT] #Majin Buu Arc Completely First Time! Let's Give It a Try! ! ! ! ! [Nijisanji / Suzuhara Ruru]
【ドラゴンボールZ　KAKAROT】#魔人ブウ編　完全初見！いっちょやってみっか！！...
Ishigami Nozomi
[Dragon Ball Z KAKAROT #6] On to the Majin Buu Arc! ! I remember being scared [Nijisanji Member / [Ishigami Nozomi]
【 ドラゴンボールZ KAKAROT #6 】魔人ブウ編へ！！怖かった記憶、アリ【に...

Reference Channels & X (Twitter)
・Igarashi Rika
@igarashirika
Twitter: 1garashi_Rika
・Honma Himawari
@honmahimawari
Twitter: honmahimawari
・Nanase Suzuna
@nanasesuzuna
https://x.com/Suzuna_Nanase
・Higuchi Kaede
@higuchikaede
Twitter: Higuchikaede
・Suzuhara Ruru
https://www. @lulusuzuhara
Twitter: lulu_suzuhara
・Ishigami Nozomi
@ishigaminozomi
Twitter: I_Nozomi_

Virtual YouTuber Series Playlist ↓
バーチャルYouTuberシリーズ

Daikon Man Twitter ↓
Twitter: Daikon_Man_V

#Nijisanji
#VirtualYouTuber
#VTuber
#IgarashiRika
#HonmaHimawari
#NanaseSuzuna
#HiguchiKaede
#SuzuharaLulu
#IshigamiNozomi
#DragonBallZ
#KAKAROT
#NijisanjiClips