In the third century of the New Science and Technology, mankind has entered the era of interstellar travel. The Lu family brothers and sisters were orphans who survived the impact of the comet Zipu as aboriginals (Earth residents) and were moved to Mars. However, they escaped the night before they were adopted. The brother and sister tenaciously survived in the harsh Martian environment. The older brother became a powerful "monster" and the younger sister became a great creature left over from history - a doujin girl. One day, a time machine was discovered in the hands of her sister, and she "accidentally" sent her brother through time... A certain girl didn't think about it, but her brother's "old lover" got angry~ What should I do? There is no other way, let's wear it together~ The other world must be very exciting~
This article is a bit slow, so please be patient while reading it~