different grade level readings

Grade 4 reading:didn’t read shit says “kashimo is the strongest with a domain expansion” (Common)

Grade 3 reading:read 4-7 chapters but missed 99% of it (Uncommon)

Grade 2 reading:close to the skill level of a grade 1 read 30-100 chapters (Rare)

Grade 1 reading:read 100-170 chapters (Legendary)

Special Grade reading:read the whole manga and remembers everything (Mythical Legendary)