Review Detail of MrNecro in Nanomancer Reborn - I've Become A Snow Girl?

I am honestly disappointed with how this novel has developed. I will admit that I binge read it for a good while only due to some semi-unique concepts and the potential romance between Shiro and Lyrica since it was obvious there was some kind of chemistry between them that was building for a good while. That was until the Gary Stu of the novel came along. I am not even going to make an attempt at remembering his name since he is, at best, a supporting character until the author suddenly began to force interacts with the Gary Stu and Shiro, even writing in a sloppy backstory of how Shiro saved his life and all that just to shoe-horn in the cliche of 'perfect man that only has one woman in his heart' troupe that makes no sense. This is compounded when it is revealed that Shiro has lived three separate lives, her life as Shiro so far, her past when she got the nano machines, and the ice woman, can't remember her actual name. One would think that having such wealth of experiences, especially from her first life, would temper her not to fall in love so swiftly. However that is proved wrong when the author throws her character development into the garbage and forces her character to be a shy and useless girl whenever Gary Stu is around. While I know an author is free to write whatever they wish, it leaves an awful taste in my mouth when my enjoyment of watching a traumatized character slowly work through their struggles for so long only for it to turn into a mediocre and tiring read because the author wanted to force the MC lead from Shiro into Shiro and Gary Stu for no other reason than with the nasty excuse of 'he waited so long for her and it is only natural for her to accept his feelings'. This is not even going into how for a good bit in the beginning of the novel he literally stalked her and was a general pest besides being used as a plot device to drive the story forward, even though he was never needed. TLDR; Novel was good up until when the author forced a shoddy romance between Gary Stu and Shiro into the mix while forsaking an already well built relationship with another character.