untouchable: untouchable in a fundamental vaule
doesn't attack: he simply won't attack
IQ: knowledge goes no bounds, inf IQ
personality : Calm, all knowing, pure of heart,no evil
books: Has a book on every fighter, etc
The librarian lives in his endless library where reality cannot be manipulated, The library is basically his own pocket dimension, battles take place there.
his immortality is above ALL laws at every vaule as he's KEY to the first ever omniverses existence, his power level is easily outterverse.
He never, EVER attacks people in the library. if anyone causes havoc, etc. they will be kicked FOREVER.