Early Life

Yui was the first-born to Naoki and Haruka Maki. Since she could remember, she was always drawing. Even her parents have told her and other friends and family that Yui has always been an artist. Morning anime always inspired her to draw with it’s beautiful animation and character design and stories. She even started making her own stories for the fun of it and sharing it with her friends and family. The child was always an energetic person, and she was always inspired. Her parents cherished every piece of artwork their daughter created, and even to this day still keep them. Her younger brother, Yori, was born when she was 6, making her an older sister. There are several pictures in frames around the house her parents lived in of Yori made by Yui.

In elementary school, Yui already had a okay art style and began working on her first manga series, Fairy Witch. She drew four volumes of it, her friend, Ayako, helping her out with the backgrounds and item details. Fairy Witch was about a fairy named Andromeda who had been captured by a witch named Annabella. Andromeda, over time, grew to become like her owner: mean and uncaring. She eventually escaped the witch and wreaked havoc across her old home. A male fairy ended up bringing Andromeda out of her bad ways and the two of them fell in love; the manga ended with the fairies getting married. It was essentially a fairy shoujo manga. It wasn't a perfect story, and it was obvious that a child had made it. But because of that, it had a charm to it that separated it from other series' like it. She got Fairy Witch published when she was 11 by a company that absolutely adored the story, astonishing several other mangakas and publishers. It never received an anime adaptation, but was very popular among young girls.

Cancer

As Yui entered middle school a year later, she began feeling pains in her right arm at night and began forming tumors. Her parents took her into the emergency room on the third night it happened and found the tumors quickly. She was diagnosed with Ewing’s Sarcoma, a very rare cancer in children. She was admitted to the hospital soon thereafter for chemo treatments and to monitor the cancer. While in the hospital, Yui continued to draw everyday as there wasn't much to do. Her parents bought her a laptop so she could at least use the internet as well. With all this extra time out of school suddenly, Yui was able to start up a new story and flesh it out better than Fairy Witch was. She was deemed clear of the cancer a year and a half later, leaving the hospital at age 13. Because of the chemotherapy treatment, she had very little hair and often wore wigs while her hair grew out a little more. The hospital stay caused her to be held back a year as trying to juggle the sudden cancer treatment and school was too hard on Yui.

Remission

Once back in the comfort of her home and she was caught up with what she missed in school, she started properly drafting her story. Mirai Soul was about a polish woman named Cecylia from the year 2098. In this future, time travel has been successfully achieved and is a crucial thing for when society starts to go in shambles. Cecylia's job is to go back in time to save the souls of those who will help keep society from crumbling, however she can't hint that she knows the future. It was extremely action-packed and she realized it'd be hard to get out the chapters. Ayako had stopped responding to her and she hadn't even seen the other around school since she got back. She ended up taking some new friends in as assistants in case she was allowed to actually start publishing.

She submitted the series to Gangan Comics when she was about to turn 14, then gained a green light a few months later. That’s when she started up her official career as a mangaka. It wasn't long until she ended up having a messed up sleeping schedule due to it, slowing growing hard to fix insomnia and sleep spells. Her little sister, Mitsuko, was born around this time, and she did take some time off to spend helping her parents while the baby was still young. Mirai Soul was greenlit for an anime adaptation after two years of running, when it was on volume 6. The series ended after 12 volumes, each having 4 chapters. Mirai Soul gained a huge fanbase across the world, being praised for its ingenuity in the genre and concept. She was often invited to cons in America because of its popularity there. She was 16 when the series ended. By then she had already started drafting another series, and got new assistants as her old ones went on to work with other people. She knew this one would have the same impact as Mirai Soul did, but she still wanted to get this new story out there. It was called Crimson as a placeholder, but she grew fond of the simple name and kept it. Crimson was to be about an android who goes rogue after finding out that her master’s plans were for evil rather than good like he made her believe. She goes off to kill him and on the hunt for those who were helping him. At one point, a bug enters her system, causing her to malfunction and start killing anyone who’s ever done something that could be deemed as 'bad', even law breaking even to the smallest extent. A sister android gets sent out to stop her, and figure out where and why she's been killing.

When she was 17, Crimson was greenlit for an anime, while Mirai Soul was greenlit for a season 2.