Perhaps the timer ring is a family heirloom that Draco discovers has the power to freeze time. He uses this ability to play pranks on his Hogwarts classmates at first, but then realizes it can be used for more serious things like preventing dark magic attacks within the school.
Draco can be developed by showing his struggle with the power of the timer ring. If it gives him great power, he could initially misuse it out of arrogance, but then learn to use it more responsibly as he grows. For example, he might start using it to get out of difficult situations without thinking of the consequences, but later realize the impact his actions have on others.
One idea could be that the ring has some sort of magical power that disrupts the balance of Remnant in RWBY. Maybe it gives the wearer the ability to control Grimm in a different way. For example, instead of just attracting them, it can make them do specific tasks.
A possible plot could involve Alciel being sent on a special mission in the human world by Satan (Maou). But things go awry when he accidentally gets involved with a local community event. He has to balance his demonic duties with the newfound responsibilities in the human community. Maybe he has to help organize a festival or something, and in the process, he discovers a new side of himself and the human world that he never expected.
One interesting 'ring on draco fanfiction' story could be about a magical ring that binds Draco to the main character in a way that forces them to work together on a secret mission in Hogwarts. They start off as enemies but as they are connected by the ring, they gradually understand each other better.
A possible plot is that Draco is on probation and has to attend a special magical rehabilitation program at Hogwarts. There, he meets a group of students who are also in trouble for various reasons. Together, they form an unlikely bond and try to find a way to clear their names. Draco could also discover a hidden magic within himself during this probation period that could change his fate.
One idea could be exploring Draco's inner turmoil during his time at Hogwarts. Maybe show his struggle between his family's expectations and his own growing doubts about the Dark Lord. Another could be a time - travel plot where Draco goes back in time to change certain events. And a third idea could be a love story where Draco falls for an unexpected character, like a Muggle - born witch.
Maybe Draco is put on probation for a spell gone wrong that endangered a fellow student. During his probation, he has to assist the teachers in teaching younger students about the proper use of magic. This forces him to confront his own irresponsible use of magic in the past and grow as a wizard.
A possible plot for 'Draco in Chains' fanfiction could be that Draco discovers a hidden power or magic while chained. This newfound power could be related to his family's long - forgotten secrets. He then has to decide whether to use it for good or be tempted by the dark side again. Meanwhile, his captors are trying to figure out what he's up to, creating a tense and suspenseful story.
One idea could be that Maou and Emi have to team up to face a new, more powerful demon from Maou's past. This demon challenges Maou's leadership and Emi realizes she has to help him to keep the peace in their current world.
Another interesting plot could involve a magic - based tournament where characters from both Naruto and The Devil is a Part - Timer participate. Naruto's ninja skills and chakra - based abilities would be pitted against the magic of the characters in The Devil is a Part - Timer. It could lead to some unique battles and alliances.