It depends on your preferences. If you enjoy a variety of comic genres and don't mind surprises, it can be worth it. But if you have very specific tastes, it might not be the best choice.
The " bento " in anime usually referred to the result of a character's death in battle. This phrase was often used to describe a character who was unfortunately defeated in the final battle or the final battle and was eliminated. In anime, bento was often used to indicate that the death of a character would bring about a turning point and suspense in the plot.
A " fake bento " referred to the characters in anime, manga, games, and other fictional works who died but were actually not really bento but were revived or restored to life. This method of death was called " suspended animation " or " suspended animation state." For example, in anime, a character was suddenly healed by a mysterious force and regained his life. This could be called a " fake bento."
One idea could be a rengoku fanfic where he trains a new group of young slayers. It could focus on his unique teaching methods and how he instills his values in them.
Tanjiro would be a great character to pair with rengoku. Their different personalities could create an interesting interaction. Tanjiro's kind - hearted nature and rengoku's fiery determination could lead to some great storylines.