Strange Rule Horror, Starting With Crayon Shin-chan

[Rule-based horror + System + comedy + no female lead]

That day, Lin Fan was lying on the sofa, leisurely watching Crayon Shin-chan as usual, when a mysterious vortex suddenly appeared and whisked him away to the world of Crayon Shin-chan.

But this world was just a little different from the one he knew. While he was happily exploring, a sheet of paper flew straight into his face. He looked at the paper in his hand:

[Crayon Shin-chan Strange Instance Rules, Part One:

1. At home, follow the original storyline, and the Nohara family won’t hurt you.

2. You must attend Futaba Kindergarten.

3. Action Kamen is Shin-chan’s favorite show. Make sure to watch it on time.

4. Nene likes playing super-realistic house. If she invites you, do not refuse.

5. If there’s something you can’t handle at kindergarten, try asking Bo.

6. Don’t let Masao catch you alone with Ai.

7. Remember, there is no one named Kazama Toru at Futaba Kindergarten. Do not mention his name.]

What kind of story will unfold for him?