Can we assume Mimiminu was in the bottom tier at HAFS?

‌Looking at the admissions performance of HAFS (Hankuk Academy of Foreign Studies),
aside from a few exceptions like Seoul National University,
it is one of the top schools in the country for getting students into SKY universities
(recently, many also get into medical schools, with 4-5 students entering SNU Medicine every year, etc.)
But Mimiminu apparently took about 5 attempts?
to get into Korea University.
Given this, can we assume
he was in the bottom tier at HAFS?