Cast Lowkick! Teaching Muay Thai to Mages (Training and Tournament LitRPG)

"The word ’fighter’ means to endure. To endure your opponent’s weapons. To endure your training." — Dieselnoi Chor Thanasukarn  Namun was an undefeated Muay Thai champion when he promised never to compete again. Then, the dark side of the sport ended his second career as a gym owner and coach.   In a new world, Namun witnesses great mages dueling with their spectacular spells, only to be disappointed when one of them forfeits due to being out of mana.   But mages don’t need mana to do physical attacks.  With his promise still keeping him from the stage, Namun searches for a mage that can withstand his grueling training and eventually challenge for the title of [Imperial Champion].