When the translation involves literary works and the content of the works is mentioned, what tense should be used?

To talk about the content of a work, especially a novel with a complex plot, use the past tense.

For dialogue between characters in the work, if it is a direct quotation, use the present tense or past tense; if it is an indirect quotation, use the past tense or past perfect tense, past future tense, etc.

If it relates to the historical status and evaluation of the author in the literary work, use the present tense.

If. For evaluations involving a certain protagonist in a literary work and his historical background, use the past tense.