Ever since Hihi, the youkai, learned tennis from a human, he's been enraptured. An athlete he trained even reached fourth in the world. Bored with training monkeys to play, Hihi decides to train an athlete to win the gold medal at the next Olympic games. Excited, he heads into town and runs across Mana's friend Yuumi. The two hit it off, and right away start intense daily training, but soon crack begin to appear in their relationship.
And amazing hand speed
born from relaxing your muscles!
وخفة يد مذهلة ناتجة
!عن إرخاء عضلاتك
Und diese flinken Hände,
ganz ohne die Muskeln anzuspannen.
Esa fuerza generó
 una velocidad asombrosa.
Esa fuerza generó
una velocidad asombrosa.
Et cette explosion musculaire
dans le geste !
E una hand speed prodigiosa, 
frutto del rilassamento muscolare!
E uma velocidade de mão
incrível de relaxar os músculos!
И прекрасная скорость 
за счёт расслабления мышц!