So I've been reading a lot of manga recently stumbled across this one and it's probably my favorite, it's called "Leveling with the gods" and it's basically a story about a guy who is trying to climb "the tower" and this tower has an interesting premise and is extremely well told, enjoy!
This is in Korean not Japanese
Lebel Ub
Level Up
They have no letter v so they replaced it with a b
the last letter of the last tripartate syllable sometimes acts like a b and sometimes like a b