Total Recommendations: 1
If you liked
Kaguya-sama wa Kokurasetai: Tensai-tachi no Renai Zunousen
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...then you might like
Aishiteru Game wo Owarasetai
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Both mangas have a psychological warfare where the main couple try to get a reaction from the opposite person. Similar to Kaguya-sama, they play a psychological game where they try to get a confession from the other person. It's not strong on the comedy element but the concept is pretty similar and could be called a predecessor of Kaguya-Sama.