This is set in the same town and share cross over story with it as well. Theres a new set of main characters with romantic problems just as bad as these two but there is a lack of aliens. It is mostly just teenagers who don't understand love yet. oh and a guy and his possibly little sister who might be his girlfriend eventually.
Anyway if your a fan of onegai teacher, onegai twins is almost exactly a like but i found it even better cause it was slightly more relate-able and not as far fetched in a way. Also in a way the characters were more or less more enjoyable since there was more of them and they just seemed to be more energetic in the plots. read more
I strongly urge fans of Onegai Twins to watch Koi Kaze. Both shows deal with the topic of incest, specifically a romantic love between brother and sister, but Koi Kaze actually brings up legitimate issues that could arise if siblings decided to become a couple. There's no peer approval, no understanding family members, no marriage, no 'love-finds-a-way', only a strong rejection from society. Additionally, Koi Kaze analyzes realistically the psychological profile of a brother that falls in love with their sister (and vice-versa) without sugar-coating it; the heavy mental pitfalls that befall the pair - a mixture of self-loathing and never-ending anxiety - are a hard, but refreshing, watch. If you want to see the incest taboo explored to its full depth with masterful, mature lens, watch Koi Kaze. read more
Both are WOEFULLY and CRIMINALLY underrated GEMS that deal with siblings who live together after not knowing each other for over a decade. Masterful and realistic romance anime that share the sibling sub genre.
Main difference is the male MC, where Koi Kaze has a very realistic and flawed lead Koshiro, and Onegai Twins has a stellar and truly beautiful lead in Maiku that all other romance/harem anime male leads should envy.
Both are MUST WATCH worthy, and are leaps and bounds better than their low 7 ratings and are actually some of the BEST anime for their genre ever created.
Both series contain a similar theme and feeling.
Both the protagonist present in the series are involved in a love triangle that has mishaps, trials, but also with joy and memories.
Both series are set in a similar setting filled with drama, romance, and emotions.
Don't get Twins confused with Teacher. both are completely different. Both Twins and M;Y involve a guy who has recently returned to his hometown after an extremely long time, and begins to find friends that he forgot he had. One of the females always has a crush on him, and the others support her even though the guy shows no interest in them. This is an anime of hardship.
Incestuous feelings. Need I say more? Both shows have a male protagonist that has complicated feelings towards his both sister and another girl, so a love triangle ensues. Both shows are very visually beautiful, emotional and feature memorable soundtracks.
Forbidden love is one of those genres in the anime world that's explored in both series.
In both series, there is a forbidden romance between the main characters. Although Onegai Twins focuses more on a love triangle, both series contains rivals and drama.
Both series also has comedy although Boku wa Imouto ni Koi wo Suru focuses more on the drama side. Additionally, both anime(s) have that mature and emotional side where the main character struggles to find his way throughout the story.