There's a manga called 'Heartless Love' where the main character plans revenge on the love interest after being hurt emotionally and betrayed in a major way. The revenge plot adds a lot of drama and tension to the story.
I'd recommend 'Romantic Encounters'. In this manga, a milf plays a significant role as a love interest and the plot develops around their relationship in a captivating way. There are some unexpected twists and turns that keep you engaged.
One such manga could be 'My Little Monster'. The female lead has tomboyish traits and plays a significant role in the romantic storyline.
One such manga could be 'Your Name.' It has a foreign male character as a love interest and is quite popular.
You might want to check out 'My Little Monster.' Here, the childhood friend has a prominent position as a love interest, and the story unfolds around their relationship.
One such manga could be 'Love and Older Lady.' It focuses on a sweet romance involving an older female character.
The penguin love interest comics usually have cute and charming art styles, with the penguins showing various expressions of love and affection.
I don't think robots can have emotions like love for manga. They don't have feelings or preferences like we do.
Todoroki's love interest in the manga is kind of up in the air. The story doesn't really zero in on that aspect. It's all about his hero journey and growth for now.
It's not clearly defined in the manga. There are multiple characters who could potentially be seen as having some sort of connection with Ayanokoji, but no definite love interest.
In the Gunnm manga, Hugo is one of Alita's love interests.