Review Detail of Weirdo in Harry Potter: Rubik's Cube of Heavens

I had read a few chapter since the other reviewer said its gonna be weird for a while until later. So I keep reading until the part where the title really click. This is one of those novel that send their kid to another world to gain power and stuff. One real world that unlock isekai, then send their kid to other world to gain stuff, power, etc.. Alot of novel that use this idea last year. Anyway, back to spoiler. This novel mc is one of the kid with dad who got a cliche mysterious relic, a rubik's cube. It's randomly send the user to any world with guaranteed deadly curse once you get into any world. Everyone died except the last user, where he luckily escape. And the main reward is 7year younger, that's it. Now,since its deadly, nobody want it so mc dad get it cheap. Long story short, mc got curious and play with it, and his dad saw it. He yell, mc drop cube, cube send mc to Harry Potter world,and got caught by someone nasty. What I'm curious here is that this is isekai with multiverse world, yet the title is HP:Cube of heaven - ish. So it's kind of weird, unless this whole novel will focus on this world only until the end. Maybe.. But for me, its not my kind of tea. I would keep it in my library first and see for future if I would read it.