Is it forbidden to imagine adventures that include fictional characters performing forbidden acts, such as drinking alcohol and killing, knowing that these imaginings are not written down, narrated, or imitated?

"Mere thoughts and abstract imaginations do not hold a person accountable, as the Prophet, peace and blessings be upon him, said: 'Indeed, Allah has forgiven my nation for what their souls whisper or تحدث to them, as long as they do not act upon it or speak of it.' However, a wise person should occupy themselves with what benefits them, such as seeking forgiveness, remembrance of Allah, and reciting the Qur'an, because wasting time on what is not beneficial is a loss. Allah and the Prophet have both emphasized the importance of time."