Amaranthus from Around 40 Otoko no Isekai Tsuuhan

Amaranthus, or Amaru as he prefers to be called, is a charismatic and adventurous otaku who was summoned to a parallel world from our modern-day Earth. Born with an affinity for gaming and anime, Amaru quickly discovers that his new reality is eerily similar to the fantasy worlds he used to immerse himself in. With his vast knowledge of games and anime, Amaru becomes an invaluable asset to the royal court, helping to defeat monsters and navigate political intrigues. Despite his newfound responsibilities, Amaru remains true to his otaku roots, often referencing anime tropes and gaming strategies in his daily life. His peculiar behavior and unique perspective on life make him a beloved and eccentric figure among the court.