There is? That's just my default.
I've noticed a bit of chatter about interactions, I actually haven't read the first few pages, but I would like to bring up that in the last Death Note game hosted by Ratchet, Light started alone and he had to recruit his gf (or it might have been vice versa).
In any case, that still could be the case here, so interaction reads might be null. But Ratchet has probably also mixed up this set up quite a bit. Just something to keep in mind.