She is going to realize they are in a relationship one day as they sit in their apartment cuddling together after watching a late night anime

Suzuya said:
Kaere

Took my liberty with changing Mogami's first line Paracite - would be quite weird for Mogami the sister to call her Suzuya-san.

Nakano-kun said:

It would be quite weird for Mogami the sister to call her Suzuya-san.

Yep, messed up there. Thanks for catching it.

Practically married.

Only thing that can stop this is probably Akashi showing up

"Like and old married couple" as one would put it.

All of this because of One Piece