I am a longtime fan of Andrew Rowe and his books. I loved How to Defeat a Demon King and Sufficiently Advanced Magic was groundbreaking. However, I have some issues with this book. Below are some of those issues, in no particular order, but with some spoilers.
This story felt a little poorly planned and like the author didn't quite know what to do with it at times, like it was a placeholder to set up the next book. In the beginning portion of the book Corin goes over some enchanting projects that are very interesting and have very important immediate and long-term applicability. Then that's basically it. He does some catch up and makes a couple more batteries and that's it; no more projects for this book. Patrick feels more and more like a dog that was adopted, just to be left at home by himself. He feels less and less relevant and is constantly pushed aside and left behind, in addition to not adding much to any conversation.
At one point Researcher, the knowledge elemental summon, demonstrates the ability to remotely copy and reproduce books with a certain range of her. This is an incredibly useful ability that is only relevant for that scene. At one point later on they are about to go to a tower filled with rare and forbidden knowledge and Researcher asks to be summoned there, because it interests her as a knowledge elemental. Once they get there, Corin and Sera stay up and take turns reading these books all night. Researcher is not summoned, despite the fact that she asked to and could have copied literally all of the books for then to read later. Books on magical theory for sorcery and magic from other continents. Important stuff that is incredibly valuable. That was irritating and didn't make sense. Another inconsistency is when Sera states in the beginning of the book that she doesn't remember her Judgement. This is reinforced several times throughout this book and previous ones when it is said that people have those memories erased upon completion. Near the end, Sera regales them all with the tale of her Judgement for a full day. This doesn't make any sense, unless Sera was just taking the opportunity to bask in some attention while she made stuff up?
Lastly, what irritated me the most was that I reached the conclusion that I just really don't like Sera's character. She was alright in previous books, but just feels insufferable now. She has an absurd amount of screentime and has incredibly rare, good things happen to her constantly. Everything that happens to her dramatically increases her power and potential when she was already the most powerful of the students. Even when she supposedly has very little mana, easily the least of any of them and below her levels in the first book, she still has enough to form many, many contracts with extremely powerful monsters and regularly summon them in addition to casting spells. It's ridiculous. With her mana levels and health concerns she should be a huge liability, but she often Carrie's the party be herself. It honestly feels like the author is having a crisis of main characters and wants to focus on Sera instead of Corin, to the point of sabotaging Corin a bit. On that note, Sera is extremely self-serving and constantly uses and abuses those around her. When Corin is actively trying to enchant new items for her to use, for free, using his own money and materials, she still charges him money or favors to lend her mana to charge runes. On an item he is making Her, from his own materials, for free. Later on, when they are debating if Corin should go to the tower, she insists on coming even though it makes the trip longer and more dangerous. Then when they get there and the tower master asks Corin to complete a task for him Sera negotiates what her own reward will be. She wants a personal reward for Corin retrieving something from a testing shrine. Then, once Corin has completed the shrine and asked for the thing he needs for his reward from the shrine, Sera takes advantage of the tower's transportation resources to complete the shrine on her own and get her own rewards, separate from what Corin needed to complete the task. She is constantly free-loading off if Corin and using and abusing him to get more power and stuff while he is using his rewards to progress the main storyline. She us the member of a party that nobody wants to play with because they are too selfish to advance the group instead of themselves. She also constantly sells Corin out to his father. She might say she doesn't want to be the family's heir, but her behavior says otherwise.
On a similar note, Corin seems to get screwed over a lot. Everytime he gets access to some more power, it is a secondary type that isn't very useful. Sera's powerups are always obviously powerful with a phenomenal amount of growth potential while Corin's look like crap and have a laundry list of drawbacks and negatives. It just feels like the author may be trying to prepare us for Corin's death while he makes Sera the MC, even though she is selfish and constantly insulting those around her.
Also, everyone is apparently polysexual now. Everyone. Make of that what you will.
Edit: I am adding this note in because the last line of my review is receiving an inordinate amount of attention. The number of recurring comments and messages I have received is surprising because it was not a significant part of the original review and barely occupied any space in my thoughts when I wrote the greater part of the review, evidenced by how much of the review is specifically not about it. However, since it seems to be the most interesting portion of the review, I will expound on it a little and hopefully satisfy some questions and comments that will no longer need to be asked.
I do not have a problem with non-traditional relationships or sexualities being depicted; it is a work of fiction and anything can happen. I care that it was not done better. The non-traditional sexualities are presented as something so normal that no character remarks upon them, implying that they are a normal and accepted part of society, but those sexualities are only associated with fringe characters.
Book 1:
Corin is a teenager dealing with severe emotional and physical trauma. He has spent several years isolated from his family, friends, and the world at large in an environment where he only interacts with his abuser every day. He receives an attunement that places him on the fringe of his social groups and further ostracizes him from his father. He has no friends aside from long-lost acquaintances and family that adopt him into their existing social group, where he is still an oddity. Corin is originally implied to be asexual, but then expresses that he is open to a same-sex relationship.
Jin is a descendant of the royal line of a conquered kingdom. He is a stranger everywhere he goes, neither accepted by the new rulers of his homeland or the citizens of the neighboring country he goes to school in. Jin expresses interest in Corin, his only friend at the school.
Keras is literally from another world/planet/continent and is hunted by every major authority figure/group until he reaches an uneasy peace with the ones that are relevant to the story. He is as much of an outsider as you can get in that he is not human and not a member of their society or culture in any way. Keras flirts with Derrick, but otherwise does not give away any information about his sexuality.
Derrick is a tower climber that appears to have little interaction with his family, lost his climbing group, and recently got out of a relationship. We don’t see him with any current social relationships outside of his breakup and when he hangs out with the teenagers. He literally lives on the fringes of society in a house at the edge of town by himself. A house that he invites a group of teenagers he has barely met to move into with him. This can be explained a bunch of different ways, but Derrick is still not the model of a healthy and normal adult. Derrick flirts with Keras and is known to have had a long-term girlfriend.
Book 2:
Sheridan is a non-binary individual that attempts to heal Sera. Sheridan is extremely hard to find and can only be reached by referral from one of their friends, choosing to live in secrecy to avoid persecution, presumably because of their abilities. We do not know anything about their sexuality, other than that they identify as non-binary.
Book 3:
Sera is a bastard daughter that was abused and treated as lesser for her entire life, until she received an impressive attunement and was declared legitimate. Her only known friends are the other servants’ children she grew up with and Mara, whom she meets in book 1. She flirts with one of the twin sisters in the tower and tells Corin she wants a sister-wife or something similar. She may just be messing with Corin, which would not be out of character for her since she may very well be a sociopath.
Mara is a commoner raised in a town where her family was abused and punished for not surrendering Mara, a child, to their local lusty noble. Mara experiences any sort of freedom for the first time when she goes to magic school and makes friends with the other characters. She is pursued by one of the twin sisters in the tower and very quickly develops feelings for the weak, delicate girl.
The summoned sisters were created by the tower based on the real birth of twin sisters a handful of decades ago. The sisters were ostracized by society and kept hidden in their home their entire lives for fear that they would be killed as demons, which is exactly what happened. Both sisters are only alive in the tower for a night, but both express romantic interest in other females.
I may have forgotten one or two more minor characters, but I think I got the main ones. My main point in bringing up these characters is that every character that displays a non-traditional sexuality or gender-identity is an outsider on the edge of society. Acting like it is normal is all well and good, but what the characters are saying and what we are being shown is different. There are no functional members of society, authority figures, or role models that identify this way. Saying something is a normal and accepted part of society when it only applies to the misfits and rejects makes it ring hollow. If you got this far and still want to comment how much you disagree, that’s fine. I would just rather talk about Sera than how sexuality is presented. I hate Sera, she’s a manipulative sociopath; let’s talk about that.