Shinmai Ossan Boukensha, Saikyou Party ni Shinu hodo Kitaerarete Muteki ni Naru.

First, it was considered that at a young age, you must start your adventure because it helps to get magical powers at a younger age. At a young age, you can also get strength by doing adventure and also increase it. But there is a man, Rick Gladiator who started his journey at the age of thirty. He became a great adventurous at that age and even gained the S-Rank which is one of the highest adventurer ranks. He has a team and tries to defeat all the enemies and advertisers who underestimate him and his powers.