Volume three is the start of the next story arc. In this portion of the story, the members of the Black Moon are trying to steal the Mystical Silver Crystal, and they’re after Chibi-usa, a strange girl who literally fell out of the sky and demanded Usagi’s Crystal.  Chibi-usa pledges not to let Usagi out of her sight until she has the crystal, so she casts a spell over Usagi's family and moves in as a "cousin" of the family. The Black Moon pick off the Sailor Scouts one by one and weaken Usagi’s confidence in herself and her team.  Towards the end, Chibi-usa finally opens up and reveals who she is, where her "home" is, and why the Black Moon is after her.

Vol 1: The Space Race of 1869

After a tragic science experiment claims the life of a family member, Séraphin his father find themselves in the castle of the King of Bavaria, working with a small crew on an engine powered by the legendary substance known as Aether. But there is more involved than just science and engineering in this tale of political intrigue and invention.  Séraphin recognizes someone in the castle as a person who tried to sabotage everything, but none of the adults believe him.  Instead, Séraphin and his new friends swear to protect the project and the King as the Knights of the Aether. 

Thanks to Emma and her pen, the residents of Goldy Pond can finally figure out what Mr. Minerva set up for them so many years ago.  Emma finds the true Goldy Pond, not the hunting ground facade that she first discovered, and within, there is much revealed about The Promise set up between the humans and demons generations ago, as well as important background details on Mr. Minerva himself.  Unfortunately, Goldy Pond is another dead end, and Emma and the rest of the children have to fight their way past some of the worst demons if they are going to continue their journey towards the Human World.

Tohru is a hardworking, charismatic high school student trying to get by and work her way to college.  She's had her share of tragedy, as she lost her mother recently, and she was squeezed out of her grandfather's house while he does renovations.  At the onset of our story, she is living in a tent on seemingly uninhabited land.  Here, she is discovered by the Sohma family, whose land she has been living on.  They invite her into their home in exchange for her domestic skills, which they are severely lacking.  Here, Tohru finds out their secret -- that they are all members of the Chinese zodiac, and they turn into their animal forms if embraced by a member of the opposite sex.  But, the longer Tohru stays, the more she discovers that this might not be the only secret the Sohmas have.

This story opens up with Chise being purchased for an insane amount of money. She is immediately whisked away by her new owner, Ainsworth, who is an ancient mage and plans to train Chise as his apprentice.  Ainsworth reveals Chise is a "Sleigh Beggy," a human who can absorb and use vast amounts of magic.  Other magical creatures are drawn to Chise, and she learns of faeries, dragons, and other mythical creatures.  Chise's tragic background has given her some major trust issues, and she can't believe that Ainsworth and his few friends actually treat her well.  She decides to learn as much as she can from Ainsworth and try to make him proud of her, but she's also waiting for her comfortable life to be ripped away from her.

Lord Tae Jun, the second son of the Fire Tribe General, has decided to go under cover to find out if the mysterious lady he heard is, in fact, Princess Yona. When he enters Katan Village, he finds sick elderly, hungry children, and some members of the bandit gang he’s after, The Hungry Bunch gang.  Tae Jun learns that the measures of his father, the general of the fire tribe, have left villages desolate, without young able bodied men to do the work of planting and harvesting, and sicknesses have ravaged the land.  His main goal is to make Yona happy and proud, so he decides to invest his men and resources into setting up a countermeasure headquarters in the village.  This brings able bodied men to fix buildings, and doctors to treat the sick.

Katie is the successful head chef of a restaurant named Seconds.  Everyone loves the food. But Katie is unsatisfied with her life.  All her friends who were with her when she opened Seconds have moved on with their lives, and Katie is surrounded by young-ins she barely knows.  She’s working on a new restaurant in a beautiful old building that’s in a not so great part of town, hoping a fresh start on her own will help with her mood. One night, Katie is visited by a strange girl who offers Katie a way to undo some of her past mistakes, but this becomes a slippery slope with major consequences.

Training and rank wars continue as several top, elite agents test the apprentices of Jin to see what all the fuss is about. First up is Mikumo against Kazama. The two go 25 rounds, with 24 going to the A-ranked Kazama, and a tie on the very last battle. Then, after fighting for as many rank points as he could, Yuma challenges A-rank Satori for being disrespectful to Mikumo. Chika also wows the trainers and execs with her off-the-charts Trion levels. It’s all fun and games until Jin’s side effect predicts a massive invasion from Neighbor, which leaves everyone preparing for battle.

Vol 4: Rising Action, illustrated by Jamie McKelvie, colored by Matthew Wilson
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There is no way to summarize this volume without spoiling the ones that come before, so I'm not going to try.  I will instead just provide my review.

This volume provided a lot of clarity to some action in previous volumes, but the underlying motivation of our "bad guy" is still unknown.  Every new chapter gets us closer, gives some small tidbit, but there's still a big mystery to solve.  The art is back to normal, without guest artists and colorist, so that was a major improvement from Volume 3. 

Illustrated by Michael Sloan

In the Fall of 2016, the Aldabaan family receives word that they have been approved to travel from Jordan to the United States.  Brothers Ibrahim and Issa are able to emigrate with their families, but they are leaving behind their mother and another brother and family.  This is after they have all fled war-torn Syria.  The eldest son, Naji, can't wait for the family to start their new lives in the United States, but the political climate has Ibrahim and his wife, Adeebah, unsure of what they're going in to.  Once in Connecticut, they receive help from IRIS, a refugee resettlement agency, and told that they need to become self-sufficient within four months.  The whole family adjusts to oddities of America, such as basements and Life Alert.  Naji and his sister, Amal, start school and are treated as outcasts.  The family constantly wonders if they've really left behind the worse life.