Rentaro Aijo was rejected 100 times in middle school. He visits a shrine and prays for better luck in high school. The God of Love appears and promises that he'll soon meet 100 people he's destined to date. But there's a catch—once destiny introduces someone to him, the two must happily love each other. If they don't, they'll die. What will befall Rentaro and his 100 girlfriends in high school?
You can now watch The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You online on the following streaming providers in the United States.
| Production | Ayaka Yoshino | Associate Producer |
| Production | Takanori Hosaka | Associate Producer |
| Production | Tan Zixin | Associate Producer |
| Production | Haruhito Nakayoshi | Executive Producer |
| Production | Ryota Ozaki | Producer |
| Production | Tatsuya Ueki | Executive Producer |
| Production | Takahiro Ishiyama | Producer |
| Production | Hirotaka Kaneko | Executive Producer |
| Production | Cao Cong | Executive Producer |
| Production | Shunsuke Matsuda | Executive Producer |
| Production | Shotaro Usui | Executive Producer |
| Production | Akihiro Sotokawa | Executive Producer |
| Sound | Ryutaro Usukura | Music Producer |
| Sound | Kaede Hondo | Theme Song Performance |
| Sound | Maria Naganawa | Theme Song Performance |
| Sound | Asami Seto | Theme Song Performance |
| Sound | Ayaka Asai | Theme Song Performance |
| Sound | Miyu Tomita | Theme Song Performance |
| Sound | eba | Original Music Composer |
| Visual Effects | Akane Yano | Character Designer |
| Directing | Hikaru Sato | Series Director |
| Writing | Rikito Nakamura | Comic Book |
| Writing | Yukiko Nozawa | Comic Book |
| Camera | Naomi Shima | Director of Photography |
| Sound | Masanori Tsuchiya | Sound Director |
| Visual Effects | Aiko Matsuyama | Color Designer |
| Sound | Katsuhiro Nakajima | Sound Effects |
| Sound | Shunsuke Takizawa | Original Music Composer |
| Writing | Takashi Aoshima | Series Composition |
| Art | Akihito Ougiyama | Art Direction |
| Editing | Mutsumi Takemiya | Editor |
| Sound | Shuhei Mutsuki | Original Music Composer |
