Love and relationships appear in most genres of Japanese animation. Plenty of the most beloved manga and anime stories are romances or dramas based on the ever-growing bond of two people falling in love. Many shojo anime series are like that, along with some slice-of-life shonen series, or even some lighthearted seinen series as well.
Source：https://www.cbr.com/top-wholesome-anime-romances-ranked/
