Looking for a manga

What I recall of the story is that the 'real world' is aware of Isekai'ers because a day before they are summon to the other world, they get their cheat power. A number of them go on a rampage because the law can't really do anything about it before they are taken away.

The MC, having been caught up in a rampage, has trauma from it, resulting in agoraphobia and not leaving his apartment for sometime. He get a cloning power and the isekai's timer.

He panic about this and tries to send a clone through the portal instead of himself. This works, leaving his real self in the first world and the clone in the new world. This end up getting him the achievement 'return home' or something like that, granting him a lot of points to upgrade his cheat power.

The clone find a village and stay in a inn. The village is home to a necromancer cult that kill the clone in his sleep and raises him as a undead. The MC is still in control of the undead clone and after killing the cult, learn necromancy.

A second clone get turned into a vampire. An another clone focuses on faith and becomes a paladin without the god noticing anything weird. Back in the first world, the mc uses a clone to be a vigilante, fending of isekai's rampages and investigating a mystery(I don't recall what).

Does that sound familiar to anyone?