This is very good. Don't read too much into the MUpdates comments in which people say it goes downhill in the middle. I never once thought that occurred. There is also no "Multiple Romances," as tagged on MUpdates, the protagonists stay true to each other throughout the entire series. The ending is also good. I only wish there was an epilogue displaying the two MC's after boxing, but before their wedding.
9.6/10 - The only downside was that there wasn't enough school interaction for me and that the ending didn't have a chapter dedicated to the two MC's life after boxing (before they are wed).