by mature i mean not the usual over the top 1 dimensional characters and in real life setting - two ordinary people getting to know eachother then falling in love is essentially what i want to read, not stuff too gimicky or over the top. Preferably based in the current age.
https://www.novelupdates.com/series/the-heartbeat-at-the-tip-of-the-tongue/ https://www.novelupdates.com/series/i-dont-like-the-world-i-only-like-you/ https://www.novelupdates.com/series/hokuou-kizoku-to-moukinzuma-no-yukiguni-karigurashi/ this one isn't a modern day setting per say but close. Very much a sweet slice of life. I'd also rec taking a look at the different "recommendation lists" lists people have made on the stories you already like.
There's a whole bunch of Chinese romances set in the modern-day that are relatively drama-free and slice-of-life-ish: - A Slight Smile is Very Charming - Come and Eat, Shan Shan - Fleeting Midsummer (Beijing University's Weakest Student) - Really, Really Miss You - Rebirth on the Doors to the Civil Affairs Bureau Then there are the Japanese ones, which tend to be set in high school (unlike China's university or working-adult centric novels), or in a fantasy land: - Every Morning the Most Popular Girl at School Sits Next to Me on the Train - Hokuou Kizoku to Moukinzuma no Yukiguni Karigurashi - Regarding the Duke with Gynophobia and the Eccentric Lady Scholar - The Saint's Magic Power is Omnipotent
Love is Deep — a toy designer embarks on a new relationship with a breast cancer surgeon. Ongoing, outside of NU.