The Mysterious Tennis Coach is the Rival of Love!
Nazo no Tenisu Kochi wa Koi no Raibaru Desu!
"Kyoko begins taking tennis lessons with Mrs. Ichinose upon a neighbor's suggestion. Coach Shun Mitaka is introduced, and like Godai, he instantly falls in love with her. And unfortunately for Godai, he proves to be very smooth and bold competition. Attending the Chachamaru party, Godai confirms that he meant his declaration of love to Kyoko of the night before, embarrassing her to the point of running off. " (source)