Yukimura Seiichi has an older brother named Yukimura Liyu.
Without a doubt, this brother is a genius among geniuses. Foreign media once hailed him as the hope of Japanese tennis after Echizen Nanjirō. No one expected that Yukimura Liyu would ever lose.
But the one who beat him was Yukimura Seiichi. People couldn't help marveling at the brothers' extraordinary, unmatched talent and skill.
Notes: Many elements are my own headcanon.
Readers who support Seigaku, beware. The King of Rikkai will win three championships in a row.
Please don't bring up other works in the comments, and vice versa.
Only the outline is complete. There are very few drafts.
There will be less controversy surrounding mental tennis because of the older brother.
Update schedule is irregular, since I'm a student.
Theme: May we all find sparkling joy amid the little messes of everyday life
