The French goalkeeper has penned a two-year contract extension with the Club, extending her stay in Manchester to 2022.
The 31-year-old, who has adopted her mother's surname, initially joined on a one-year contract last September but is delighted to have signed a new contract to the summer of 2022.
The shot-stopper says she has thoroughly enjoyed her time at the Club, thriving on the environment and culture, and has learned so much in a short space of time.
"In the Club, what I like is that everyone works hard and gives the very best of themselves but at the same time, the atmosphere is very relaxed - everybody works hard individually and is looking at giving their very best within a very friendly and good working environment," she reflected.
"This gives us the drive to be better and to want to do better.
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"Regarding the facilities, City really provide everything we need for us to work in the best possible circumstances. I am benefiting from all of this and this is a wonderful experience for me. I am really happy.
"I knew that this past year for me would be a year to adapt because there are a lot of things that I didn’t experience before. As a result, I have tried to improve and develop in other areas such as fitness, technique and style of play as well because City’s style is quite special.
"I learned a lot of things. It has been a great season, a great year even if it ended a bit too early unfortunately.
"Personally, next season, I hope to have more gametime and to win titles next season because this year, we didn’t get the chance to do that, although we had everything to be able to achieve it."
Watch Karima's interview with CityTV in the video above...