Well, that was a lackluster ending for sure...
At least Aoi confessed to Makoto in her absolutely lively fashion, but we didn't get at least a glimpse of them actually becoming a couple. This last volume was absolutely rushed, sadly.
For the characters:
Makoto - we seen xer grow from being mistreated by xer mother, through Ryuji and Aoi, then grandfather help xe overcome own struggle and became more confident in who xe is.
But we didn't get a chance for Makoto to actually came out, is it crossdressing or xer gender identity is of a female, though it seems like it's neither as she prefers men and women.
Ryuji - as mentioned by the author, he wasn't even considered as memorable character, was supposed to be just an addition to the story but became a crucial part of it along the way.
Although he helped Makoto a LOT in school and also Aoi, was hoping they would help him too, he seems to have self hatred issues, he knows he is homosexual but also is afraid to come out and despises himself. Shame we didn't see him coming out in front of his parents...
Saki - throughout the story she didn't change much, always was depressed on the inside but happy outside. She suffered from abandonment issues due to her father fixation and seemingly mother willing disappearance. It's not made clear if she is bisexual, but given she was attracted to Makoto feminine side and continue to be after the reveal, might be it.
Masako - although at first, she was a good caring grandmother, in later chapters we discovered she was the main reason for all the shit Aoi got through.
She didn't care about Aoi well being and blame everything on her mother, while being blinded by love to her son, although after living with Aoi she managed to overcome her judgment and see just how no good trash he was, but her damage was already set...
Mika - Makoto's mom being a prejudiced and homophobic wasn't really solved thoroughly, just sort of acceptance, we didn't have her being reunited with her father through Makoto help, which would be most welcome.
Eiichiro - Makoto grandfather was a great addition and surprising reveal, he helped a lot with Makoto progress and facing xer mother... sadly we didn't get the chance of reconciliation with his daughter.
Chihiro - Saki mom started out as careless mother that abandoned her daughter without making any contact, turning out to be actually neglected by her husband who chosen his love for whales instead relationship and persecuted by mother-in-law who was blinded by love to her son, dumping all the blame on her making her having huge confidence issues that were eventually solved by Hongo.
Hayase - was the first friend Makoto had a part of Ryuji, her low self-esteem prevented her from standing up against Makoto bullying and false rumours being spread, but at least she had a chance to make up and found significant other in Saotome.
Yūji - Aoi father was trash and even after his daughter near death experience, still was trash. His fixation over whales was what made his wife and daughter to have whole lot of issues, from inferiority complex to abandonment and neither of those were addressed not confronted.
Fujii - the boy who confessed, got rejected and sexually assaulted Makoto just to make sure xe is a guy arc got handled really badly and ended up "just forget about it". He was also victim blaming Makoto and although supposedly not the one telling everyone about it, we didn't had a chance to know who actually spread the rumour about Makoto "assaulting him".
The art was good, whole lot of panels are genuine wallpaper materials, the story progressed food but had a whole lot of missing arcs that weren't solved at all leaving bad aftertaste.
I'll give it a solid 7/10 due to not completing loose ends.
Thanks for the scanlation till the very end!