Rosvisser’s suggestion brought a realization to Leon. 

After the conclusion of the Dragon-Human War negotiations, the Thunder Dragon King, Odin, had once mentioned wanting to spar with him. 

However, so much time had passed since then—long enough for Leon to have three children—yet Odin had never followed up on his challenge. 

Not that the old dragon was impatient. While Odin was undoubtedly eager to test his skills against a talented younger opponent like Leon, he wasn’t a battle-crazed fanatic like Constantine. Odin exuded a calm and composed demeanor. 

“Anyway, I’ve sent my challenge. Fight me or don’t—it’s up to you.”