There aren’t too many good, realistic romance anime series out there. Many of the most popular romance anime series feature main characters with 10+ love interests all vying for their attention or other tired anime tropes that can fail to appeal to fans who aren’t actively looking for those tropes. Luckily, in a genre with a ton of unrealistic love stories, there are still a few that center their premises on realism. Blue Box is exactly that. At its core, it is a fresh, unique, simple series with lovable main characters and a realistic plot.

https://screenrant.com/netflix-anime-blue-box-secret-romance-recommendation/