Jing Shao left the cafe and ended up on a rooftop, then went from a room to a prison.
He had lost his memory, but somehow he hadn't.
He travels back and forth between five worlds, recovering his memories and becoming himself again!
A low-level human who travels between five worlds but has an incredibly high IQ (bottom) x a high-dimensional combat android from the fifth world (top)
The author's writing is at an elementary-school level, with lots of straightforward description. It's a newbie's reckless phase.
Theme: Forge ahead bravely