最近急に生徒会顧問になったのも...私たちを狙っているからだったりして… → The girls are being targeted because they have become the new Student Council Advisors. Not the guy who is a coach or something became the advisor.
"A student council advisor guides student leaders in successfully planning events, making decisions and representing their fellow students. This role is essential to developing students' leadership skills and supporting their efforts to serve their school."