Steven Universe and the Crystal Gems

 is an American adventure-fantasy-comedy comic book series based on  by Rebecca Sugar, being published by DC Comics since April 15th, 2019.

Synopsis
Set after Jasper's defeat and transformation into a monster, Steven Universe and the expanding Crystal Gems has to stop the Gem Empire and other threats.

Main

 * Steven Universe - the son of Rose Quartz who is a half-gem and helps the Crystal Gems while trying to crack the secrets of his mother.
 * Garnet - a skilled and formidable Crystal Gem who is the leader and is out to help stop the Gem Empire.
 * Ruby and Sapphire - two gems who are madly in love and are primarily fused together as Garnet.
 * Pearl - the former assistant to Pink Diamond and former lover to Rose Quartz who is now a skilled swordswoman and helps the Crystal Gems out.
 * Amethyst - a goofy and party animal gem who was abandoned without a purpose as a young gem as she uses comedy to keep her spirits up.
 * Connie Maheswaran - Steven's best friend who joins him as she is currently training under Pearl to become a skilled sword wielder.
 * Peridot - a sarcastic gem whose vision of a perfect world has been shattering as she is trying to redeem herself for the mistakes she has done.
 * Lapis Lazuli - a gem designed to terraform worlds as she alongside Peridot are currently attempting to become less associated with the Gem Empire.

Fusions

 * Stevonnie - a fusion between Steven and Connie who shares Steven's gem-like abilities and Connie's master sword fighting skills.
 * Steg - a fusion between Steven and Greg who is known for having both Steven's defensive powers and the power of music.
 * Garnet - see above.
 * Sugilite - a fusion between Garnet and Amethyst who is a lot more vicious and feral yet is still friendly at heart.
 * Sardonyx - [Garnet and Pearl]
 * Sunstone - a fusion between Steven and Garnet who is actually surprisingly very chill and is also cool.
 * Amazonite - a fusion between Garnet and Lapis Lazuli who is an extremely skilled combatant and uses both of their abilities to help.
 * Opal - a fusion between Pearl and Amethyst who is a skilled musician and swords fighter as they are a somewhat common fusion.
 * Rainbow Quartz 2.0 - the fusion of Pearl and Steven who is a skilled fighter and defender and is the perfect mix of their personalities.
 * Pearlonnie - a fusion between Pearl and Connie who is an extremely skilled sword user due to both Pearl and Connie's skills.
 * Smoky Quartz - a fusion between Steven and Amethyst who is extremely jokey like Amethyst and loves to lighten the situation.
 * Flower Azurite - a fusion between Amethyst and Peridot who is extremely calm and controlled, compared to both Amethyst and Peridot.
 * Benitoite - the fusion between Lapis Lazuli and Peridot who is a skilled warrior in her own right.
 * Alexandrite - a fusion between Garnet, Amethyst and Pearl who holds all of their abilities and is extremely skilled.
 * Obsidian - the ultimate fusion between Garnet, Amethyst, Pearl and Steven who is said to be extremely powerful and is only used for the most dangerous threats.
 * Rainbow Obsidian - an extremely powerful gem that is a fusion between every single Crystal Gem and Connie who has only been used a few times.

Supporting

 * Greg Universe - Steven's lazy but caring father who loves playing music and cares about about his son's safety, supporting his goals, being later revealed that he was the one mainly responsible for Rose Quartz's transformation from a vicious freedom fighter who only "redeemed" to escape the boredoms of being a Diamond to an actual caring and kind person.
 * Lion - Steven's mysterious pet lion who he loves to hang with.
 * Bismuth - a member of the original Crystal Gems who was popped by Rose when she got close to figuring out her secrets as she now has a grudge against all gems, slowly redeeming.
 * Lars Barriga - a slightly narcissistic teenager who is one of Steven's closest friends.
 * Sadie Miller - a cool and music loving teenager who is one of Steven's closest friends.
 * Ronaldo Fryman - a conspiracy theorist who is extremely crazy yet isn't that bad.
 * Mayor Bill Dewey - the mayor of Beach City who is surprisingly very friendly towards people.
 * Doug and Priyanka Maheswaran - Connie's slightly overprotective but still caring parents who want to make sure that Connie is safe.
 * TBD
 * Pink Diamond/Rose Quartz - Steven's questionable mother who was thought to be a fair and just figure, but it turned out to be a both vicious and manipulative Diamond as she pretended to be kind and caring until she met Greg and finally understood what being human means.

Antagonists

 * The Gem Empire, consisting of:
 * White Diamond - TBD
 * Yellow Diamond - TBD
 * Blue Diamond - TBD
 * Emerald - a feared and formidable captain of a battalion of pilots who shows pleasure in showing that she outsmarts her enemies.
 * TBD
 * Aquamarine - the head of Pink Diamond's zoo who keeps running it after her shattering as she is very vicious.
 * Moonstone - a huntress gem who is capable of turning invisible and is surprisingly skilled at hunting.
 * Jasper - a former Gem commander who mutated into a mutant monster and is still on the loose in Beach City.
 * Spinel - a ghost of Pink Diamond's past who has arrived to kill Steven, knowing something about him that he doesn't.

Fusions

 * Black Diamond - a dangerous fusion between the three Diamonds who has taken a new and dangerous control over the Gem Empire after Steven, Garnet, Amethyst and Pearl as Obsidian defeated White Diamond.

Issues

 * 1) /After the Storm/ - Set two weeks after Jasper's corruption and escape, the Crystal Gems, now with Lapis and Peridot as members, hear about the plans of Yellow Diamond to launch an invasion on Earth.
 * 2) /Bismuth's Return/ - After they get overwhelmed in a battle, Steven decides to think quickly and brings Bismuth back to turn the tide. However, he quickly learns that his words that he used to redeem Peridot and Lapis doesn't work on everyone.
 * 3) /Girls' Day/ - After learning that Lapis and Peridot never heard of a girls' day, Connie decides to take them on one.
 * 4) /Through the Thunder and the Rain/ - Pearl and Lapis don't truly trust each other as they are forced to bond when both of them are alone in the jungles as it is both raining and a gem that can turn herself invisible is after them.
 * 5) /Broken Legacies/ - Steven decides to dig into his mother's old history with the Crystal Gems as he learns that she wasn't the best before she met Greg.
 * 6) /Do You See the Light?/ - Various residents of Beach City has been acting strange as the Gems learn that the Gem Empire has launched a device that can control humans' minds as things get worse when Connie gets consumed by this hypnosis.
 * 7) /Trust Exercise/ - Garnet, Amethyst and Pearl work on trusting Lapis and Peridot as things get intense when hordes of gems assault the Crystal Gems' hideout.
 * 8) Vault 24 - The Crystal Gems discover a mysterious bunker that belonged to Rose Quartz as they investigate it.
 * 9) TBD - TBD
 * 10) /The Creature from the Lake/ - A strange monster is spotted in a lake nearby Beach City as the Crystal Gems investigate and learn that the creature is a still corrupted Jasper.
 * 11) TBD - TBD
 * 12) TBD - TBD
 * 13) TBD - TBD
 * 14) TBD - TBD
 * 15) /You're A Slave Now/ - Pearl get poofed and has temporarily lost all of her memories as Amethyst and Peridot use this for fun to have her do what they want.
 * TBD

Trivia

 * This comic ignores most of the events of the series after Season 3 and addresses the complaints about the route it has been taking later on, especially by redeeming villains shallowly and pandering to the LGBT community while butchering those characters' personality traits, by making villains more difficult to redeem and portraying LGBT themes more naturally.
 * Despite that, some of the events/characters portrayed in the first three seasons could be altered, implying the entire comic is an AU but just set after the corruption and defeat of Jasper.
 * Fusions (aside from Garnet) are used in a more regular basis, especially when it comes to more complex threats.