def check_seasonal_anime(anime: str, all_anime: list) -> bool:
    """
    Function to check whether the anime is being aired this season.
    Horrible subs only keeps the torrent files of the anime in the current season only,
    on the nyaa.si website.
    :param anime: Name of the anime to check.
    :param all_anime: List of all the animes of the current season.
    :return: True if anime in the current season else False.
    """
    for seasonal_anime in all_anime:
        if anime.lower().replace(" ", "") in seasonal_anime[0].lower().replace(" ", ""):
            return True
    return False