The ending of 'Koe no Katachi' was a bit bittersweet but also provided a sense of closure. The main characters found some sort of resolution and growth.
The answer to whether Kaori lives in the Kimi no Uso manga depends on how you interpret the story's progression and the author's intentions. It's a matter of in-depth analysis and understanding of the manga's narrative.
Kimi ni Todoke's manga has a conclusive ending that isn't sudden or out of the blue. The narrative progresses smoothly towards its finale, leaving no major loose ends and providing closure for the readers.
The Kimi ni Todoke anime is generally quite faithful to the manga. There might be some tweaks for the sake of animation or to better fit the pacing, but the core story and characters remain consistent.