Sensei wa Koi o Oshierarenai (or The Teacher Can Not Tell Me Love in English) is a Romantic Comedy by Motomi Minamoto that debuted in Monthly Shōnen Sunday in 2018.
Lazy high school student Ryo Arase struggles making ends meet while living on his own and balancing school and his part-time job, resulting in a combative relationship with his teachers, particularly the strict no-nonsense, Rinko Yoshitaka. But unknown to everyone, Arase and Rinko are actually in a committed relationship, something they struggle to keep secret while Rinko tries to prevent things from getting too physical until Arase graduates.
This manga contains examples of:
- Aborted Arc: Sadly enforced, given the manga's cancellation. The manga had two Origins Episodes that were slowly building up to how Rinko and Arase started their actual relationship, but the storyline was never followed up before the manga ended, so we never find out how they started dating.
- Age-Gap Romance: Rinko and Arase, of course. But also Rinko's younger sister An who is dating a single father 15 years her senior.
- Bad Liar: Rinko. Particularly anytime she tries to deny her attraction towards Arase.
- Blind Without 'Em: Rinko has very bad vision. When she breaks her glasses on a school trip she immediately walks into a lamppost right in front of her. Later, still with no glasses, she does it again.
- This is how Rinko and Arase first got together. Rinko was late returning a DVD rental but broke her glasses. Arase was the clerk and offered to take her home since his shift was over. Rinko couldn't recognize him as her student because of her poor eyesight.
- Book Dumb: Arase has the lowest grades in his class.
- Dating What Daddy Hates: An is dating a single father 15 years her senior, a situation her father hates. One can imagine he wouldn't be very thrilled if he found out his other daughter was dating a minor either.
- Drowning Our Romantic Sorrows: Hifumi and Kurokawa take Rinko to a bar after Arase is tricked into dumping her.
- Embarrassing Hobby: Rinko loves sappy romance dramas but doesn't want anyone to know about it. So much so that she travels some distance to rent movies so that the locals don't find out.
- Erotic Dream: While on a school trip to Kyoto, Rinko has a dream about having sex with Arase. She admits that she would really like that to happen, and is so ashamed of it that she spends the next day going out of her way to avoid him.
- First-Episode Twist: The beginning plays like a normal Slice of Life about a slacker student who constantly gets into trouble with his teacher. Then he goes home and the teacher is waiting for him at his house and they hug.
- Food Slap: Kurokawa pressures Arase into dumping Rinko because of what it could do her career (but he is actually doing it because he wants to date Rinko himself). When she figures out Kurokawa was responsible she yells at him that the relationship was her decision to make, to report her if he wants, and throws her beer in his face.
- Gold Digger: Hifumi proudly proclaims that she won't date anyone earning less than ten million yen a year.
- The Jailbait Wait: Rinko very specifically refuses to kiss or have sex with Arase until he's old enough, although he would like her to forget about that.
- Opposites Attract: Rinko is a serious, strict, and nerdy teacher. Arase is her easy-going, snarky, Book Dumb, slacker of a student. Despite this they love each other very much and have been dating since before the start of the series.
- Perpetual Poverty: Arase. Rinko does try to help with his finances, but he is insistent on trying to manage things on his own.
- Please Put Some Clothes On: Rinko visits Arase's apartment at Christmas only to find his sister naked. She doesn't see the problem, but Rinko insists she put on clothes anyways causing her to look for some of Arase's clothes to put on. It is never explained what happened to her own clothes.
- Robo Cam: On Valentine's Day Rinko enters Robo Vision Mode to seek out chocolate students are smuggling in against school rules so she can confiscate it.
- Shameless Fanservice Girl: Hifumi, the school English teacher, wears skimpy outfits and says she can make students more obedient by exposing her boobs a bit.
- Also Mako, Ryo's sister who has no problem walking around with no clothes on.
- Stern Teacher: Rinko is one, which is why it is all the more shocking when it turns out she is dating a student.
- Teacher/Student Romance: Arase and Rinko are already together at the start of the series.
- The Un-Favorite: An was frequently ignored as a child in favor of Rinko, and had a lonely childhood as a result. Still mostly applies as an adult, where An's relationship with her family (especially her father) has become quite combative.
