it was a fine anime, nothing really special about it. You'll see Lev and Kenmas bond slightly improving but not really any wow factor. Still a chill anime and you'll think its good if you love Kenma and/or haikyuu.
I really liked this OVA. I don't really know how to review stuff since I suck at explaining things😂 But I loved how they included parts of Karasuno playing the video game❤❤ but this ova mainly focuses Nekoma practicing for a match.