Uchuu toka to Kurabetara Chippoke na Mondai desu ga

The youngest daughter who worries about completely pointless things. The super indecisive middle daughter. The extremely annoying, lip smacking eldest daughter. Starting with these three sisters, this is a story about lovable, clumsy people. A short slice of life comedy that surprisingly has nothing to do with the universe!

(Source: Kadokawa, translated)