'We need to support the second years.' Unlike the first years whose contracts usually range in strength from red-grade to orange-grade, second years' contracts are usually between orange and yellow grade.
Although it's still a challenge for them to take on the approaching green-grade spiritual creature, it is a lot safer than sending out the first-years to intercept it.
"Jin! If we take care of most of its puppets, do you think that you and the other second years can kill the green-grade spider?"
Jin immediately nodded without hesitation. None of the top 5 students of each year should have much trouble contending against spiritual creatures one level higher than themselves. And while the gap in strength between levels increases with each step, working together as a group they should be able to take it down.