I'm just gonna pretend Sohta is a senior lol

Do we know how old he is? I can't remember.

He’s in grade 3 of high school :)

Then he is a senior

I thought the third level in high-school is junior? Maybe it's different in japan though
ヾ(❀╹◡╹)ﾉ~

Yeah I was going to say that I was pretty sure it said somewhere he was in class 3-A or C or something and 3 means Senior lol.

Yeah in japanese highschools, it's 3 years, First Year, Second Year, and Third Year. Third Years are the Seniors because they are the most respected and about to graduate.