Eiichirō Maruo (nicknamed "Ei-chan" for his grades being straight "A") is an honor student, bookworm, and is not interested in anything other than studying. In order to solve his problem of lacking physical strength, he enrolled a tennis school and soon found the fascinating side of tennis. Being a tennis newbie lacking physical strength, he supplement his shortcomings with his excellent observing and analyzing skills.
Season 1
Season 2
The World and the Wall A Vicious Circle is Lucky Data for the Future Awakening to Simplicity Takuma's Decision First Encounter by Scouting Revenge at the Critical Moment The Speed of Evolution Baffled by Intuition Start With a Roar Choices and Explosive Power Full Force Toward Adversity Gathering of Rivals Moonlight and the Sound of Waves A Hero and Loud Cheers Whish, Then Fwoom Dramatic by Nature Visualize the Pressure A Rude First Meeting Psychological Warfare and Self-Control Good, Evil, and Rules Existence is the Driving Force Aggressive is Ideal Recklessness and Surprise Final Set
The World and the Wall A Vicious Circle is Lucky Data for the Future Awakening to Simplicity Takuma's Decision First Encounter by Scouting Revenge at the Critical Moment The Speed of Evolution Baffled by Intuition Start With a Roar Choices and Explosive Power Full Force Toward Adversity Gathering of Rivals Moonlight and the Sound of Waves A Hero and Loud Cheers Whish, Then Fwoom Dramatic by Nature Visualize the Pressure A Rude First Meeting Psychological Warfare and Self-Control Good, Evil, and Rules Existence is the Driving Force Aggressive is Ideal Recklessness and Surprise Final Set