I have always loved Japanese anime since my childhood years when series like Dragonball blew my mind and I think all the minds of my friends and school kids around the world, trying to imitate Goku doing the famous kamehameha movement. Mazinger Z, Dodge Danpei, Dragon Quest... so many amazing memories from those years in front of the TV screen.
The anime genre also had some great jewels in sports/romance in those years, I fondly remember Attacker You! or Attack Nro 1 that were nicely mixing love with volleyball sport.
I did not come back to the romance genre in many years, though I have seen in my adulthood many other great anime series like Attack on Titan or The Seven Deadly Sins. I was a bit bored at home wanting to watch something new, so I chose a Japanese series I had no idea what was about: Blue Box.
The series, that is currently available for its 1st season in Netflix, is based on the manga books series Ao no Hako by Kouji Miura, and follows the life of Taiki, a high school Japanese student who loves training and competing in badminton, while having a secret crush on fellow student Chinatsu, the start of the basketball school team. Adding to this, there is Hina, a cute chilhood friend of Taiki, start in the gymnastics team, with a funny straightforward personality and a love for Taiki and starts in secret but she has the nerve to declare to him.
When I watched the first episode, at first I thought, oh gosh this is so slow and lame, just for female teenage watchers, but the show captivated me quickly. The dialogues and situations are very nicely written and developed, slowly but steadily, the main characters are very likeable, the art is beautifully transferred from the book pages to the animation, and apart from the classic themes of love, shyness, misunderstandings and uncomfortable situations of the teenage years, there are also great moral values in the way of overcoming loss, trying to push the limits, working hard every day to give a better version of yourself, and friendship.

The secondary characters sorrounding Taiki’s life, like Hayru, an older player that pushes him to train harder, Kyo, who in the shadows seems to be the first to understand the situations or the funny and I think sometimes underrated Nishida, who has a gold heart even when often blurbs silly comments, are very well balanced. And Chinatsu is lovely from her voice, her actions, and her slowly shift of attention to Taiki. In a way it feels that even if we see the relationship form from the eyes of Taiki, she was already there interested from the first episode, something that Taiki himself does not realize most of the times.
Maybe what hit me hard and deep in this show is the memories that brings of some of the best years in life, when all is new and exciting and the world is full of potential possibilities: being the last one to notice small gestures that your friends notice, dreaming what the girl you like is gonna wear for a date next day, how just holding hands or close physical contact can make your heart race… that beautiful time that will never come back, but that we somehow can live again following Taiki and Chinatsu’s love story.

The show builds up slowly, do not expect here declarations of love from the first episode, but is a visual delight and you really feel like you cannot wait to watch the next one. For the moment Netflix has aired only Season 01, although for what I could see online, there is a Season 02 programmed for this 2026, while the original manga has advanced more in the story. I recommend both the manga books and the series, as the adaptation is fantastic and if you like Japanese anime, sports and a good love/romance evolving, surely you will enjoy this, no matters if you are a young teenager of a man in his mid forties like me. Give it a shot, it is one of the gems recently released for anime fans!

















































