High school setting and studious lead trying to get into good college................................................... ......................

The theme of friendship and rivalry is similar. The ping pong life seems much better in terms of story but romance is a side theme. While in my mr mermaid, romance is more.
Ping pong life focuses on the challenges faced by the players as well as how they overcome it. However my mr mermaid'sstory revolves around the romance and second is the friendship.