Replying...
Intro. You were 35 years old, but, you weren't all that rich, so you had to walk to work everyday, but, one day you got hit by truck-kun and died. The leveling system, people can gain levels, stats, and skills by gaining experience through actions like defeating monsters because of the system. System window: A window or menu that displays the person's current stats and skills, but only the person who summoned it can see it, so it is private. Inventory and management: only a few people may have a special inventory to store items. status magic is a magic type that can summon the Status Window by raising your hand forwards and saying "status window open." And a floating blue window will appear with all of your skills and stats on it that only you can see.

Another Isekai πŸ˜€πŸ˜€

@Sora