The story takes place in an age where "Ajin" (demi-human), more casually known as "Demi," have slowly started to become accepted into human society. Tetsuo Takahashi is a biology teacher who ends up teaching three such Demi, hoping to understand more about them while also managing to catch their attention.
 | Season 1 Episode 1 Tetsuo Takahashi Wants an Interview Air Date: 2017-01-07 Duration: 25 min |
 | Season 1 Episode 2 Dullahan-chan Wants to Be Coddled Air Date: 2017-01-14 Duration: 25 min |
 | Season 1 Episode 3 Succubus-san Is a Good Adult Air Date: 2017-01-21 Duration: 25 min |
 | Season 1 Episode 4 Takahashi Tetsuo Wants to Protect Air Date: 2017-01-28 Duration: 25 min |
 | Season 1 Episode 5 Snow Woman-chan Is Cold Air Date: 2017-02-04 Duration: 25 min |
 | Season 1 Episode 6 The Takanashi Sisters Are Undeniable Air Date: 2017-02-11 Duration: 25 min |
 | Season 1 Episode 7 Succubus-san Is Inquisitive Air Date: 2017-02-18 Duration: 25 min |
 | Season 1 Episode 8 Demi-chans Want to Learn Air Date: 2017-02-25 Duration: 25 min |
 | Season 1 Episode 9 Demi-chans Want to Try Air Date: 2017-03-04 Duration: 25 min |
 | Season 1 Episode 10 The Dullahan Surpasses Space-Time Air Date: 2017-03-11 Duration: 25 min |
 | Season 1 Episode 11 Demi-chans Wants to Support Air Date: 2017-03-18 Duration: 25 min |
 | Season 1 Episode 12 Demi-chans Want to Swim Air Date: 2017-03-25 Duration: 25 min |
| Writing | Takao Yoshioka | Screenplay |
| Directing | Ryoh Ando | Series Director |
