Under One Man manga did not explicitly describe the love story. Although there were some characters in the manga who had emotional entanglements, these emotional lines were not clearly depicted and were not officially recognized. In the manga, it mainly talked about the friendship, battles, and growth stories between the characters.
Love can be the answer in some manga, but it often depends on how the plot develops and the characters' journeys. Different mangas handle love differently.
The Love Bell manga was a Japanese manga with the theme of love. It told the love story of young men and women, and often revolved around dating, confessing, quarreling, and other plots.
Well, the chances of the To Love Ru manga returning depend on various factors like the creator's plans and market demand. Right now, there's no clear indication one way or the other.