If the previous ep showed us the side of tennis' surface for bad plays, this ep gave us the complete opposite of it. It's by far one of the purest plays I've seen in most sports anime. Kin-chan was enjoying it way too much, and all that happiness from playing was being shared with others as well, especially Oni! Clean play, pure skills, and absolute love for the sport. Definitely deserves one heck of a five-star rating. Bonus is probably seeing the Echizen siblings on the go with their ikemen faces, lol.