Koeharu! (2021)

Both dramas have a cast consisting, mostly, of Hinatazaka46 members, and convey nice, uplifting messages.

Both dramas feature a FL who wants to become a voice actress, sharing an apartment with other girls who have the same dream.

Both dramas revolve around a group of young people who want to be voice actors. They start to revolve around a young girl with the same dream (the female protagonist). She is a fan girl of a certain person and is his greatest fan.

In If voice has memory the person she admires is a young person and they fall in love.. in Koeharu he is an elderly person and she auditions to be his voice actor.
In both she he is the person in which company she drives to be the most in.

Both dramas involve friendship between the voice actors.