A Sky-Colored Swallowtail

When Ageha was younger, she watched a tennis game and was affected by a passionate young tennis player. Years later she was determined to become the number one tennis player and to join the tennis club in her new high school.
Unexpectedly, on her first day of school, the person who sit next to her is none other than "the passionate young tennis player" Takeru. But this Takeru quit tennis long ago, and Ageha is determined to make him play again and establish the Tennis Club in their school and be the number one tennis player that will defeat the prodigy Takeru.
Is her eager intention is enough to sway his decission? Will the Tennis Club in their school be ever establish? Is this the start of a new love on the tennis field?