Thanks for your votes, here's the result summary:

1. Guardian assigned to Lehigh's Campus & share house

8

2. Human classmate of Lissa's

2

3. Human classmate of Christian's

0

4. Human classmate of both Lissa and Christian

2

5. Tutor of Lissa's (& Dimitri by default)

2

Out of options 2, 4 & 5

For chapter 7, which one???