The protagonist gets the system, crosses the different world composed of comprehensive comics, chainsaw man, fate, magic return station and so on, but how can those protagonists...

Familiar and strange?

They... How did they all turn into women?!

And this world! Why am I the only man! Because there is no male existence! Women have no immunity to me!

The harem of the end?!

My voice!

My appearance!

I have traveled through time, what should I do? Don't panic, just go and have a look. Sigh, you guys continue, I'm just passing by. (Newbie, don't criticize if you don't like it. The first world is a battle. As for the next one, I'll write it first.)

"System, can you let me travel back in time?"

"No."

"What about letting me change back to my original appearance?"

"No."

"You can't do this or that, but you can at least help me find a girlfriend, right?"

"No, this system cannot help you find a girlfriend, but it can make you someone else's girlfriend."

"???"