Refusing to Serve Me? Then Off With Your Head! Read dysry's review first before you start as the first few chapters may get a little confusing.
https://www.novelupdates.com/series/rebirth-on-the-doors-to-the-civil-affairs-bureau/ Although it takes quite a while until you get there, but the stories of the people who make call to her radio station are quite sad and heartwarming. Like, her few words are life-changing for those people. It's really touching.
Hm..... Spice and Wolf-drama romance with economy or economy with drama romance Falling in love with the villainess-arc 1 and 2 is realy good, end of arc 1 almost put me to tears.....
Pursuit of the Truth - in my personal opinion the best novel on NU. Though, I can't say which part would make one cry due to massive spoilers.