Yuuhi learns of the reason Samidare wishes to destroy the Earth, and he continues to train himself every day in order to hone his new powers. However, the "discipline" Yuuhi received from his grandfather continues to bind him like cursed chains.

During that time, Yuuhi receives word from his home that his grandfather has fallen ill and been hospitalized—
You'll have to hone your base stamina, then.
سيترتّب عليك صقل لياقتك الأساسيّة إذاً
Dann solltest du deinen ganzen Körper
in Form bringen.
Pues tendrás que ganar
bastante resistencia.
Tendrás que ganar bastante resistencia.
Pour ça,
il faudra augmenter ton endurance.
Per farlo, devi migliorare la tua resistenza di base.
Então vai ter que melhorar
sua vitalidade básica.
Для этого нужна
хорошая физическая подготовка.