An Ordinary Boy and the Elemental Girls

An original world setting: "Half-System + unconventional + brainless fun + foreshadowing"

What would you do if some of the little objects around you suddenly turned into people? That's exactly what happens in the world bubble where the male lead lives. All kinds of objects come to life and become people, but retain their original functions, leading to numerous dangerous incidents. The protagonist thought he would never encounter anything like this in his life, until one day he accidentally smashed a bottle of experimental hydrogen gas... (The story is generally similar to Date A Live, with a favorability System and the so-called conquest!)