Shera L. Greenwood is a prominent character in the anime series 'Isekai Maou to Shoukan Shoujo no Dorei Majutsu' (How Not to Summon a Demon Lord). She is an elf princess who becomes one of Diablo's companions after attempting to summon him. Shera is cheerful, naive, and has a carefree personality, contrasting with her royal background. Her kindness and positive outlook add warmth to the group. Despite her innocence, she shows determination and courage when it comes to protecting her friends and pursuing her own dreams. Shera plays an essential role in the series, providing comic relief and heartwarming moments.